comparison of email clients

{{rh}} | Claws Mail

| the Claws Mail team

| Cross-platform

| {{open source|GPL-3.0-or-later}}

| GUI (GTK2)

{{rh2}} | Courier (formerly Calypso)

| Micro Computer Systems, Inc., continued by Rose City Software

| Windows

| {{proprietary}}

| GUI

{{rh}} | Elm

| Dave Taylor, Sydney Weinstein, Bill Pemberton, Michael Elkins, Kari Hurtta

| Unix-like

| {{open source|BSD-like}}[http://www.elmme-mailer.org/NOTICE Elm Mail System GPL]

| TUI

{{rh}} | eM Client

| eM Client Inc.

| Windows, macOS, Android, iOS

| {{proprietary}}

| GUI

{{rh}} | EmailTray

| Internet Promotion Agency S.A.

| Windows, Android

| {{proprietary}}

| GUI

{{rh2}} | Eudora OSE

| Qualcomm

| Windows, macOS

| {{open source}}

| GUI

{{rh}} | Evolution

| The GNOME Project

| Unix-like

| {{open source|LGPL-2.1-only or LGPL-3.0-only}}

| GUI (GTK)

{{rh}} | FirstClass

| Open Text

|

| {{proprietary}}

| GUI

{{rh}} | Forté Agent

| Mark Sidell

| Windows

| {{proprietary}}

| GUI

{{rh}} | Geary

| The GNOME Project (formerly Yorba Foundation)

| Unix-like

| {{open source|LGPL-2.1-or-later}}

| GUI (GTK)

{{rh}} | GNUMail

| Ludovic Marcotte and others

| Unix-like, macOS

| {{open source|GPL-2.0-or-later}}

| GUI

{{rh}} | Gnus

| Gnus team

| Cross-platform

| {{open source|GPL-3.0-or-later}}

| TUI and GUI

{{rh}} | GroupWise

| Micro Focus (formerly Novell)

| Cross-platform

| {{proprietary}}

| GUI

{{rh}} | Hiri

| Hiri

| Cross-platform

| {{proprietary}}

| GUI

{{rh}} | i.Scribe, InScribe

| Memecode

| Windows, macOS, Linux

| {{open source|GPL-3.0-only}}

| GUI

{{rh}} | HCL Notes (formerly IBM Notes and IBM Lotus Notes)

| HCL Technologies (formerly IBM and Lotus Software), HCL Technologies

| Windows, macOS, Linux

| {{proprietary}}

| GUI (Notes), Web (Verse, iNotes) and Mobile (Traveler)

{{rh}} | IMP

| Horde LLC

| Cross-platform

| {{open source|GPL-2.0-only}}

{{rh}} | K-9 Mail

| K-9 Dog Walkers: cketti, et al.

| Android

| {{open source|Apache-2.0}}

| GUI

{{rh}} | KMail

| KDE

| Cross-platform

| {{open source|GNU General Public License}}

| GUI (Qt)

{{rh}} | Mail (Windows)

| Microsoft

| Windows

| {{proprietary}}

| GUI

{{rh}} | Mailbird

| Mailbird

| Windows

| {{proprietary}}

| GUI

{{rh2}} | Mailpile

| Mailpile

| Windows, macOS, Linux

| {{open source|AGPL-3.0-or-later}}

{{rh}} | mailx

| {{dunno}}

| Unix-like

| {{open source|BSD Licenses}}

| TUI

{{rh2}} | Microsoft Entourage

| Microsoft

| macOS

| {{proprietary}}

| GUI

{{rh}} | Microsoft Outlook

| Microsoft

| Windows, macOS

| {{proprietary}}

| GUI

| Netscape Communications

| Mozilla Foundation

|

| {{open source|Mozilla Public License}}

| GUI (XUL)

{{rh}} | Mozilla Thunderbird

| Mozilla Foundation

| Cross-platform

| {{open source|MPL-2.0}}

| GUI (XUL)

{{rh2}} | Mulberry

| Cyrus Daboo (formerly Cyrusoft International, Inc./ISAMET)

| Cross-platform

| {{open source|Apache-2.0}}

| GUI

{{rh}} | Mutt

| Michael Elkins

| Cross-platform

| {{open source|GPL-2.0-or-later}}

| TUI (ncurses)

{{rh2}} | Netscape Messenger

|

| {{dunno}}

| GUI

{{rh2}} | Netscape Messenger 9

| Netscape Communications

|

| {{open source|Mozilla Public License}}

| GUI

{{rh2}} | Nylas Mail

| Nylas

|Windows, macOS, Linux

| {{open source|MIT}}

| GUI

{{rh}} | nmh / MH

| RAND Corporation

| Unix-like

| {{open source|BSD Licenses}}

| CLI

{{rh}} | Opera Mail

| Opera Software

| Cross-platform

| {{proprietary}}

| GUI

{{rh2}} | Outlook Express

| Microsoft

| Windows

| {{proprietary}}

| GUI

{{rh}} | Pegasus Mail

| David Harris

| Windows

| {{proprietary}}

| GUI

{{rh2}} | Pine

| University of Washington

| Cross-platform

| {{proprietary|Freeware}}{{Cite web |url=http://www.washington.edu/pine/overview/legal.html |title=Pine License |access-date=2006-02-24 |archive-url=https://web.archive.org/web/20180602121205/http://www.washington.edu/pine/overview/legal.html |archive-date=2018-06-02 |url-status=dead }}

| TUI

{{rh2}} | Pocomail

| Poco Systems

| Windows

| {{proprietary}}

| GUI

{{rh}} | RoundCube

| The RoundCube Team

| Cross-platform

| {{open source|GPL-3.0-or-later}}

{{rh}} | Samsung Email

|Samsung Electronics

|Samsung, Android 8+

| {{proprietary}}

|GUI

{{rh}} | SeaMonkey Mail & Newsgroups

| SeaMonkey Council

| Cross-platform

| {{open source|MPL-2.0}}

| GUI (XUL)

{{rh}} | Spark

| Readdle

| macOS

| {{proprietary}}

| GUI

{{rh}} | SquirrelMail

| The SquirrelMail Project Team

| Cross-platform

| {{open source|GPL-2.0-or-later}}

{{rh}} | Superhuman

| Rahul Vohra

| Cross-platform

| {{proprietary}}

| Thus PLC (Demon Internet)

{{rh2}} | Sylpheed

| Hiroyuki Yamamoto

| Cross-platform

| {{open source|Sylpheed: GPL-2.0-or-later
LibSylph: LGPL-2.1-or-later}}

| GUI (GTK2)

{{rh}} | The Bat!

| RitLabs

| Windows

| {{proprietary}}

| GUI

{{rh}} | Trojitá

| KDE

| Cross-platform

| {{open source|GPL-2.0-only or GPL-3.0-only}}{{r|group=Note|LicenseRef-KDE-Accepted-GPL}}

| GUI (Qt)

{{rh2}} | Turnpike

| Windows

| {{proprietary}}

| GUI

{{rh}} | Vivaldi

| Vivaldi Technologies AS

| Cross-platform

| {{proprietary}}

| GUI (Chrome)

{{rh2}} | Windows Live Mail

| Microsoft

| Windows

| {{proprietary}}

| GUI

{{rh2}} | Windows Mail (Vista)

| Microsoft

| Windows

| {{proprietary}}

| GUI

{{rh}} | YAM

| YAM Open Source Team and contributing authors

| AmigaOS

| {{open source|GPL-2.0-or-later}}

| GUI

{{rh}} | Zimbra Desktop

| Zimbra

| Cross-platform

| {{open source|Mozilla Public License for server and ZPL for client}}

| GUI

class="sortbottom"

! Client

! Author/Developer

! Operating system

! Software license

! User interface

{{reflist|group=Note|refs=

Or LicenseRef-KDE-Accepted-GPL: "Any later version accepted by the membership of KDE e.V. (or its successor approved by the membership of KDE e.V.), which shall act as a proxy defined in Section 14 of version 3 of the license."

}}

Release history

A brief digest of the release histories.

class="wikitable sortable sticky-header"
Client ! First public Date ! First public Version ! First stable Date ! First stable Version ! data-sort-type="text" \| Latest stable release
{{rh}} \| Alpine \| 2006-11 \| 0.8 \| 2007 December \| 1.00 \| {{wikidata\|property\|preferred\|references\|edit\|Q1819542\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q1819542\|P348\|P548=Q2804309\|P577}}
{{rh}} \| Apple Mail \| 2001-03-24 \| ? \| ? \| ? \| {{wikidata\|property\|Q212211\|P348}} ({{start date and age\|{{wikidata\|qualifier\|Q212211\|P348\|P577}}}})
{{rh}} \| Becky! Internet Mail \| 1996 \| 1 \| {{dunno}} \| {{dunno}} \| {{wikidata\|property\|preferred\|references\|edit\|Q837949\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q837949\|P348\|P548=Q2804309\|P577}}
{{rh}} \| Canary Mail \| 2017-06-15 \| 1.0 \| 2017-06-15 \| 1.0 \| 4.01 (5th June, 2023)
{{rh}} \| Citadel \| 1987 \| {{dunno}} \| 1988 \| 1.00 \| {{wikidata\|property\|preferred\|references\|edit\|Q1093291\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q1093291\|P348\|P548=Q2804309\|P577}}
{{rh}} \| Claws Mail \| 2001-05 \| 0.4.67 \| 2005-01 \| 1.0.0 \| {{wikidata\|property\|preferred\|references\|edit\|Q1099163\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q1099163\|P348\|P548=Q2804309\|P577}}
{{rh2}} \| Courier \| 2004-06 \| 3.5 \| discontinued \| discontinued \| {{Latest stable software release/Courier}}
{{rh}} \| Elm \| 1986 \| {{dunno}} \| 1987-03 \| 2 \| {{wikidata\|property\|preferred\|references\|edit\|Q1332651\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q1332651\|P348\|P548=Q2804309\|P577}}
{{rh}} \| eM Client \| 2007-11 \| 1.0 \| 2007-11 \| 1.0 \| {{Latest stable software release/eM Client}}
{{rh}} \| EmailTray \| 2010-10 \| 2.0 \| 2011-03 \| 3.11 \| {{Latest stable software release/EmailTray}}
{{rh2}} \| Eudora \| 1988{{cite web \|url=http://www.eudora.com/presskit/backgrounder.html \|title=The Birth of Eudora \|accessdate=2007-04-10 \|archive-url=https://web.archive.org/web/20021108211012/http://www.eudora.com/presskit/backgrounder.html \|archive-date=2002-11-08 \|url-status=dead }} \| {{dunno}} \| 1988 \| {{dunno}} \| {{Latest stable software release/Eudora}}
{{rh}} \| Evolution \| 2000-05-11 \| 0.0 \| 2001-12-03 \| 1.0 \| {{wikidata\|property\|preferred\|references\|edit\|Q336251\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q336251\|P348\|P548=Q2804309\|P577}}
{{rh}} \| Forté Agent \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{Latest stable software release/Forté Agent}}
{{rh}} \| Geary \| 2012 \| 0.1 \| 2012 \| 0.1 \| {{wikidata\|property\|preferred\|references\|edit\|Q20715678\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q20715678\|P348\|P548=Q2804309\|P577}}
{{rh}} \| Gnus \| 1987{{cite web\|url=http://gnus.org/2.0/gnus.1\|title=GNUS: a NNTP based news reader for GNU Emacs (1 of 2)\|accessdate=2008-08-04\|url-status=dead\|archiveurl=https://web.archive.org/web/20160303190300/http://gnus.org/2.0/gnus.1\|archivedate=2016-03-03}} \| {{dunno}} \| 1988-02-01 \| 2.0 \| 2015-04-06 {{Latest stable software release/Gnus}}
{{rh}} \| GroupWise \| {{dunno}} \| {{dunno}} \| 1986 \| 1.0 \| {{wikidata\|property\|preferred\|references\|edit\|Q128926\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q128926\|P348\|P548=Q2804309\|P577}}
{{rh}} \| Hiri \| 2014-02 \| 0.4 \| 2016-06 \| 1.0 \| {{Latest stable software release/Hiri}}
{{rh}} \| i.Scribe / InScribe \| 1999 \| 1.00 \| {{dunno}} \| {{dunno}} \| {{Latest stable software release/Scribe Mail}}
{{rh}} \| HCL Notes (formerly IBM Lotus Notes) \| 1989 \| 1.0 \| 1989 \| 1.0 \| {{wikidata\|property\|preferred\|references\|edit\|Q60198\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q60198\|P348\|P548=Q2804309\|P577}}
{{rh}} \| IMP \| {{dunno}} \| {{dunno}} \| 1998 \| 1.0 \| {{wikidata\|property\|preferred\|references\|edit\|Q477979\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q477979\|P348\|P548=Q2804309\|P577}}
{{rh}} \| K-9 Mail \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{wikidata\|property\|preferred\|references\|edit\|Q14565723\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q14565723\|P348\|P548=Q2804309\|P577}}
{{rh}} \| KMail \| 1998-10 \| Alpha \| 1999-02 \| 1.0.17 \| {{wikidata\|property\|preferred\|references\|edit\|Q260852\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q260852\|P348\|P548=Q2804309\|P577}}
{{rh}} \| Mailbird \| 2013-04-01 \| Public Beta \| {{dunno}} \| {{dunno}} \| {{Latest stable software release/Mailbird}}
{{rh}} \| Mailpile \| 2011-11 \| [https://github.com/mailpile/Mailpile/wiki/Release-Notes-201401-Alpha Alpha] \| [https://www.mailpile.is/blog/2017-01-30_A_Plan_for_2017.html tbd 2017] \| [https://www.mailpile.is/blog/2017-08-13_SHA2017.html 1.00 RC] \| {{Latest stable software release/Mailpile}}
{{rh2}} \| Microsoft Entourage \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{Latest stable software release/Microsoft Entourage}}
{{rh}} \| Microsoft Office Outlook \| 1997 \| 97 \| 1997 \| 97 \| {{Latest stable software release/Microsoft Office}}
{{rh}} \| Mozilla Thunderbird \| 2003-07-28 \| 0.1 \| 2004-12-07 \| 1.0 \| {{wikidata\|property\|preferred\|references\|edit\|Q483604\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q483604\|P348\|P548=Q2804309\|P577}}
{{rh2}} \| Mulberry \| 1996-09-20 \| 1.0 \| 1996-09-20 \| 1.0 \| {{Latest stable software release/Mulberry}}
{{rh}} \| Mutt \| 1995 \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{wikidata\|property\|preferred\|references\|edit\|Q1457398\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q1457398\|P348\|P548=Q2804309\|P577}}
{{rh2}} \| Netscape Messenger \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{Latest stable software release/Netscape Mail & Newsgroups}}
{{rh2}} \| Netscape Messenger 9 \| 2007-11-15 \| 9.0a1 \| discontinued \| discontinued \| 2007-11-15
{{rh}} \| nmh / MH \| 1979 \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{Latest stable software release/MH Message Handling System}}
{{rh}} \| Opera Mail \| 1996-09 \| 2.1b1 \| 1996-12 \| 2.1 \| {{Latest stable software release/Opera Mail}}
{{rh2}} \| Outlook Express \| 1996 \| 3.0 \| {{dunno}} \| {{dunno}} \| {{wikidata\|property\|preferred\|references\|edit\|Q850109\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q850109\|P348\|P548=Q2804309\|P577}}
{{rh}} \| Pegasus Mail \| 1990 \| {{dunno}} \| 1990 \| {{dunno}} \| {{wikidata\|property\|preferred\|references\|edit\|Q1639942\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q1639942\|P348\|P548=Q2804309\|P577}}
{{rh2}} \| Pine \| 1992-01-15 \| 2.00 \| 1992-01-15 \| 2.00 \| {{wikidata\|property\|preferred\|references\|edit\|Q598868\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q598868\|P348\|P548=Q2804309\|P577}}
{{rh2}} \| Pocomail \| 1999 \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{Latest stable software release/Pocomail}}
{{rh}} \| RoundCube \| 2006 \| 0.1-rc1 \| 2014-04-07 \| 1.0.0 \| {{wikidata\|property\|preferred\|references\|edit\|Q1769269\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q1769269\|P348\|P548=Q2804309\|P577}}
{{rh}} \| SeaMonkey Mail & Newsgroups \| 2005-09-15 \| 1.0a \| 2006-01-30 \| 1.0 \| {{wikidata\|property\|preferred\|references\|edit\|Q156197\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q156197\|P348\|P548=Q2804309\|P577}}
{{rh}} \| SquirrelMail \| 1999-12 \| 0.1 \| 2001-01 \| 1.0 \| {{wikidata\|property\|preferred\|references\|edit\|Q1752969\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q1752969\|P348\|P548=Q2804309\|P577}}
{{rh}} \| Sylpheed \| 2000-01 \| 0.1.0 \| 2004-12 \| 1.0.0 \| {{wikidata\|property\|preferred\|references\|edit\|Q2141006\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q2141006\|P348\|P548=Q2804309\|P577}}
{{rh}} \| The Bat! \| 1997-03 \| 1.0 Beta \| 1998-03 \| 1.00 Build 1310 \| {{wikidata\|property\|preferred\|references\|edit\|Q1634279\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q1634279\|P348\|P548=Q2804309\|P577}}
{{rh}} \| Trojitá \| 2009-08 \| 0.1 \| 2012-12 \| 0.3.90 \| {{wikidata\|property\|preferred\|references\|edit\|Q7845142\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q7845142\|P348\|P548=Q2804309\|P577}}
{{rh2}} \| Turnpike \| 1996 (circa) \| 1.0 \| 1996 (circa) \| 1.0 \| {{Latest stable software release/Turnpike}}
{{rh}} \| Vivaldi \| 2015-11-03 \| Beta 1 \| 2022-06-09 \| 1.0 \|
{{rh2}} \| Windows Live Mail \| 2007-11-06 \| 12 \| 2007-11-06 \| 12 \| {{Latest stable software release/Windows Live Mail}}
{{rh2}} \| Windows Mail \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| 2007-01-01
{{rh}} \| YAM \| 1995 \| 1.0 \| 1995 \| 1.0 \| {{wikidata\|property\|preferred\|references\|edit\|Q2600208\|P348\|P548=Q2804309}} {{wikidata\|qualifier\|preferred\|single\|Q2600208\|P348\|P548=Q2804309\|P577}}
{{rh}} \| Zimbra \| 2005-11 \| Beta \| 2006-03 \| 3.5 \| {{Latest stable software release/Zimbra}}

class="wikitable sortable sticky-header"

Client

! First public Date

! First public Version

! First stable Date

! First stable Version

! data-sort-type="text" | Latest stable release

{{rh}} | Alpine

| 2006-11

| 0.8

| 2007 December

| 1.00

| {{wikidata|property|preferred|references|edit|Q1819542|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q1819542|P348|P548=Q2804309|P577}}

{{rh}} | Apple Mail

| 2001-03-24

| ?

| {{wikidata|property|Q212211|P348}} ({{start date and age|{{wikidata|qualifier|Q212211|P348|P577}}}})

{{rh}} | Becky! Internet Mail

| 1996

| 1

| {{dunno}}

| {{wikidata|property|preferred|references|edit|Q837949|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q837949|P348|P548=Q2804309|P577}}

{{rh}} | Canary Mail

| 2017-06-15

| 1.0

| 2017-06-15

| 1.0

| 4.01 (5th June, 2023)

{{rh}} | Citadel

| 1987

| {{dunno}}

| 1988

| 1.00

| {{wikidata|property|preferred|references|edit|Q1093291|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q1093291|P348|P548=Q2804309|P577}}

{{rh}} | Claws Mail

| 2001-05

| 0.4.67

| 2005-01

| 1.0.0

| {{wikidata|property|preferred|references|edit|Q1099163|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q1099163|P348|P548=Q2804309|P577}}

{{rh2}} | Courier

| 2004-06

| 3.5

| discontinued

| {{Latest stable software release/Courier}}

{{rh}} | Elm

| 1986

| {{dunno}}

| 1987-03

| 2

| {{wikidata|property|preferred|references|edit|Q1332651|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q1332651|P348|P548=Q2804309|P577}}

{{rh}} | eM Client

| 2007-11

| 1.0

| 2007-11

| 1.0

| {{Latest stable software release/eM Client}}

{{rh}} | EmailTray

| 2010-10

| 2.0

| 2011-03

| 3.11

| {{Latest stable software release/EmailTray}}

{{rh2}} | Eudora

| 1988{{cite web |url=http://www.eudora.com/presskit/backgrounder.html |title=The Birth of Eudora |accessdate=2007-04-10 |archive-url=https://web.archive.org/web/20021108211012/http://www.eudora.com/presskit/backgrounder.html |archive-date=2002-11-08 |url-status=dead }}

| {{dunno}}

| 1988

| {{dunno}}

| {{Latest stable software release/Eudora}}

{{rh}} | Evolution

| 2000-05-11

| 0.0

| 2001-12-03

| 1.0

| {{wikidata|property|preferred|references|edit|Q336251|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q336251|P348|P548=Q2804309|P577}}

{{rh}} | Forté Agent

| {{dunno}}

| {{Latest stable software release/Forté Agent}}

{{rh}} | Geary

| 2012

| 0.1

| 2012

| 0.1

| {{wikidata|property|preferred|references|edit|Q20715678|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q20715678|P348|P548=Q2804309|P577}}

{{rh}} | Gnus

| 1987{{cite web|url=http://gnus.org/2.0/gnus.1|title=GNUS: a NNTP based news reader for GNU Emacs (1 of 2)|accessdate=2008-08-04|url-status=dead|archiveurl=https://web.archive.org/web/20160303190300/http://gnus.org/2.0/gnus.1|archivedate=2016-03-03}}

| {{dunno}}

| 1988-02-01

| 2.0

| 2015-04-06 {{Latest stable software release/Gnus}}

{{rh}} | GroupWise

| {{dunno}}

| 1986

| 1.0

| {{wikidata|property|preferred|references|edit|Q128926|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q128926|P348|P548=Q2804309|P577}}

{{rh}} | Hiri

| 2014-02

| 0.4

| 2016-06

| 1.0

| {{Latest stable software release/Hiri}}

{{rh}} | i.Scribe / InScribe

| 1999

| 1.00

| {{dunno}}

| {{Latest stable software release/Scribe Mail}}

{{rh}} | HCL Notes (formerly IBM Lotus Notes)

| 1989

| 1.0

| 1989

| 1.0

| {{wikidata|property|preferred|references|edit|Q60198|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q60198|P348|P548=Q2804309|P577}}

{{rh}} | IMP

| {{dunno}}

| 1998

| 1.0

| {{wikidata|property|preferred|references|edit|Q477979|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q477979|P348|P548=Q2804309|P577}}

{{rh}} | K-9 Mail

| {{dunno}}

| {{wikidata|property|preferred|references|edit|Q14565723|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q14565723|P348|P548=Q2804309|P577}}

{{rh}} | KMail

| 1998-10

| Alpha

| 1999-02

| 1.0.17

| {{wikidata|property|preferred|references|edit|Q260852|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q260852|P348|P548=Q2804309|P577}}

{{rh}} | Mailbird

| 2013-04-01

| Public Beta

| {{dunno}}

| {{Latest stable software release/Mailbird}}

{{rh}} | Mailpile

| 2011-11

| [https://github.com/mailpile/Mailpile/wiki/Release-Notes-201401-Alpha Alpha]

| [https://www.mailpile.is/blog/2017-01-30_A_Plan_for_2017.html tbd 2017]

| [https://www.mailpile.is/blog/2017-08-13_SHA2017.html 1.00 RC]

| {{Latest stable software release/Mailpile}}

{{rh2}} | Microsoft Entourage

| {{dunno}}

| {{Latest stable software release/Microsoft Entourage}}

| 1997

| 97

| 1997

| 97

| {{Latest stable software release/Microsoft Office}}

{{rh}} | Mozilla Thunderbird

| 2003-07-28

| 0.1

| 2004-12-07

| 1.0

| {{wikidata|property|preferred|references|edit|Q483604|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q483604|P348|P548=Q2804309|P577}}

{{rh2}} | Mulberry

| 1996-09-20

| 1.0

| 1996-09-20

| 1.0

| {{Latest stable software release/Mulberry}}

{{rh}} | Mutt

| 1995

| {{dunno}}

| {{wikidata|property|preferred|references|edit|Q1457398|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q1457398|P348|P548=Q2804309|P577}}

{{rh2}} | Netscape Messenger

| {{dunno}}

| {{Latest stable software release/Netscape Mail & Newsgroups}}

{{rh2}} | Netscape Messenger 9

| 2007-11-15

| 9.0a1

| discontinued

| 2007-11-15

{{rh}} | nmh / MH

| 1979

| {{dunno}}

| {{Latest stable software release/MH Message Handling System}}

{{rh}} | Opera Mail

| 1996-09

| 2.1b1

| 1996-12

| 2.1

| {{Latest stable software release/Opera Mail}}

{{rh2}} | Outlook Express

| 1996

| 3.0

| {{dunno}}

| {{wikidata|property|preferred|references|edit|Q850109|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q850109|P348|P548=Q2804309|P577}}

{{rh}} | Pegasus Mail

| 1990

| {{dunno}}

| 1990

| {{dunno}}

| {{wikidata|property|preferred|references|edit|Q1639942|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q1639942|P348|P548=Q2804309|P577}}

{{rh2}} | Pine

| 1992-01-15

| 2.00

| 1992-01-15

| 2.00

| {{wikidata|property|preferred|references|edit|Q598868|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q598868|P348|P548=Q2804309|P577}}

{{rh2}} | Pocomail

| 1999

| {{dunno}}

| {{Latest stable software release/Pocomail}}

{{rh}} | RoundCube

| 2006

| 0.1-rc1

| 2014-04-07

| 1.0.0

| {{wikidata|property|preferred|references|edit|Q1769269|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q1769269|P348|P548=Q2804309|P577}}

{{rh}} | SeaMonkey Mail & Newsgroups

| 2005-09-15

| 1.0a

| 2006-01-30

| 1.0

| {{wikidata|property|preferred|references|edit|Q156197|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q156197|P348|P548=Q2804309|P577}}

{{rh}} | SquirrelMail

| 1999-12

| 0.1

| 2001-01

| 1.0

| {{wikidata|property|preferred|references|edit|Q1752969|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q1752969|P348|P548=Q2804309|P577}}

{{rh}} | Sylpheed

| 2000-01

| 0.1.0

| 2004-12

| 1.0.0

| {{wikidata|property|preferred|references|edit|Q2141006|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q2141006|P348|P548=Q2804309|P577}}

{{rh}} | The Bat!

| 1997-03

| 1.0 Beta

| 1998-03

| 1.00 Build 1310

| {{wikidata|property|preferred|references|edit|Q1634279|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q1634279|P348|P548=Q2804309|P577}}

{{rh}} | Trojitá

| 2009-08

| 0.1

| 2012-12

| 0.3.90

| {{wikidata|property|preferred|references|edit|Q7845142|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q7845142|P348|P548=Q2804309|P577}}

{{rh2}} | Turnpike

| 1996 (circa)

| 1.0

| 1996 (circa)

| 1.0

| {{Latest stable software release/Turnpike}}

{{rh}} | Vivaldi

| 2015-11-03

| Beta 1

| 2022-06-09

| 1.0

|

{{rh2}} | Windows Live Mail

| 2007-11-06

| 12

| 2007-11-06

| 12

| {{Latest stable software release/Windows Live Mail}}

{{rh2}} | Windows Mail

| {{dunno}}

| 2007-01-01

{{rh}} | YAM

| 1995

| 1.0

| 1995

| 1.0

| {{wikidata|property|preferred|references|edit|Q2600208|P348|P548=Q2804309}} {{wikidata|qualifier|preferred|single|Q2600208|P348|P548=Q2804309|P577}}

{{rh}} | Zimbra

| 2005-11

| Beta

| 2006-03

| 3.5

| {{Latest stable software release/Zimbra}}

Operating system support

The operating systems on which the clients can run natively (without emulation).

class="wikitable sortable sticky-header"
Client ! Microsoft Windows ! macOS ! Linux ! BSD ! Unix ! DOS ! Other
{{rh}} \| Alpine \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| Apple Mail \| {{no}} \| {{included}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Balsa \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Becky! Internet Mail \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Canary Mail \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Citadel \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| Claws Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh2}} \| Courier \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Elm \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| eM Client \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| EmailTray \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh2}} \| Eudora \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Evolution \| {{no}} {{r\|group=Note\|Evolution_nowin}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| Forté Agent \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Geary \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| Gnus \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}}
{{rh}} \| GroupWise \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Hiri \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| i.Scribe / InScribe \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| IBM Lotus Notes \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| IMP \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| KMail \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| Mailbird \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Mailpile \| {{yes}} {{r\|group=Note\|Mailpile_soon}} \| {{yes}} {{r\|group=Note\|Mailpile_soon}} \| {{yes}} \| {{yes}} {{r\|group=Note\|Mailpile_foss}} \| {{yes}} {{r\|group=Note\|Mailpile_foss}} \| {{no}} {{r\|group=Note\|Mailpile_port}} \| {{no}} {{r\|group=Note\|Mailpile_port}}
{{rh}} \| mailx \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh2}} \| Microsoft Entourage \| {{no}} \| {{terminated}} (2008) \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Microsoft Office Outlook \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh2}} \| Mozilla Mail & Newsgroups \| colspan="5" {{terminated}} (1.7.13) \| {{no}} \| {{no}}
{{rh}} \| Mozilla Thunderbird \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh2}} \| Mulberry \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| Mutt \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}}{{cite web\|url=http://www.caddit.net/programming.php\|title=Other Programming Projects and Downloads\|accessdate=2007-04-06\|archive-url=https://web.archive.org/web/20070404233358/http://caddit.net/programming.php\|archive-date=2007-04-04\|url-status=dead}} \| {{no}}
{{rh2}} \| Netscape Messenger \| colspan="5" {{terminated}} (4.80) \| {{no}} \| {{no}}
{{rh2}} \| Netscape Messenger 9 \| colspan="5" {{terminated}} (9.0a1) \| {{no}} \| {{no}}
{{rh}} \| nmh / MH \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| Opera Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}}
{{rh2}} \| Outlook Express \| {{included}} (up to XP) \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Pegasus Mail \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes\|NetWare NLM}}
{{rh2}} \| Pine \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{terminated}} (3.96){{cite web\|url=ftp://ftp.cac.washington.edu/pine/pcpine/old/PC-PINE-3.96/README\|title=PC-PINE-3.96 README\|accessdate=2007-04-06}}{{Dead link\|date=November 2019 \|bot=InternetArchiveBot \|fix-attempted=yes }} \| {{no}}
{{rh2}} \| Pocomail \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| RoundCube \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| SeaMonkey Mail & Newsgroups \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| SquirrelMail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| Sylpheed \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| The Bat! \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Trojitá \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes\|MeeGo}}
{{rh2}} \| Turnpike \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh2}} \| Vivaldi \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh2}} \| Windows Live Mail \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh2}} \| Windows Mail \| {{included}} (Vista) \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| YAM \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{Yes\|AmigaOS AROS MorphOS}}
{{rh}} \| Zimbra \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
class="sortbottom" ! Client ! Microsoft Windows ! macOS ! Linux ! BSD ! Unix ! DOS ! Other

class="wikitable sortable sticky-header"

Client

! Microsoft Windows

! macOS

! Linux

! BSD

! Unix

! DOS

! Other

{{rh}} | Alpine

| {{yes}}

| {{no}}

{{rh}} | Apple Mail

| {{no}}

| {{included}}

| {{no}}

{{rh}} | Balsa

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | Becky! Internet Mail

| {{yes}}

| {{no}}

{{rh}} | Canary Mail

| {{yes}}

| {{no}}

{{rh}} | Citadel

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | Claws Mail

| {{yes}}

| {{no}}

{{rh2}} | Courier

| {{yes}}

| {{no}}

{{rh}} | Elm

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | eM Client

| {{yes}}

| {{no}}

{{rh}} | EmailTray

| {{yes}}

| {{no}}

{{rh2}} | Eudora

| {{yes}}

| {{no}}

{{rh}} | Evolution

| {{no}} {{r|group=Note|Evolution_nowin}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | Forté Agent

| {{yes}}

| {{no}}

{{rh}} | Geary

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | Gnus

| {{yes}}

| {{no}}

{{rh}} | GroupWise

| {{yes}}

| {{no}}

{{rh}} | Hiri

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | i.Scribe / InScribe

| {{yes}}

| {{no}}

{{rh}} | IBM Lotus Notes

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | IMP

| {{yes}}

| {{no}}

{{rh}} | KMail

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | Mailbird

| {{yes}}

| {{no}}

{{rh}} | Mailpile

| {{yes}} {{r|group=Note|Mailpile_soon}}

| {{yes}}

| {{yes}} {{r|group=Note|Mailpile_foss}}

| {{no}} {{r|group=Note|Mailpile_port}}

{{rh}} | mailx

| {{no}}

| {{yes}}

| {{no}}

{{rh2}} | Microsoft Entourage

| {{no}}

| {{terminated}} (2008)

| {{no}}

| {{yes}}

| {{no}}

| colspan="5" {{terminated}} (1.7.13)

| {{no}}

{{rh}} | Mozilla Thunderbird

| {{yes}}

| {{no}}

{{rh2}} | Mulberry

| {{yes}}

| {{no}}

{{rh}} | Mutt

| {{yes}}

| {{yes}}{{cite web|url=http://www.caddit.net/programming.php|title=Other Programming Projects and Downloads|accessdate=2007-04-06|archive-url=https://web.archive.org/web/20070404233358/http://caddit.net/programming.php|archive-date=2007-04-04|url-status=dead}}

| {{no}}

{{rh2}} | Netscape Messenger

| colspan="5" {{terminated}} (4.80)

| {{no}}

{{rh2}} | Netscape Messenger 9

| colspan="5" {{terminated}} (9.0a1)

| {{no}}

{{rh}} | nmh / MH

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | Opera Mail

| {{yes}}

| {{dunno}}

| {{no}}

{{rh2}} | Outlook Express

| {{included}} (up to XP)

| {{no}}

{{rh}} | Pegasus Mail

| {{yes}}

| {{no}}

| {{yes}}

| {{yes|NetWare
NLM}}

{{rh2}} | Pine

| {{yes}}

| {{terminated}} (3.96){{cite web|url=ftp://ftp.cac.washington.edu/pine/pcpine/old/PC-PINE-3.96/README|title=PC-PINE-3.96 README|accessdate=2007-04-06}}{{Dead link|date=November 2019 |bot=InternetArchiveBot |fix-attempted=yes }}

| {{no}}

{{rh2}} | Pocomail

| {{yes}}

| {{no}}

{{rh}} | RoundCube

| {{yes}}

| {{no}}

{{rh}} | SeaMonkey Mail & Newsgroups

| {{yes}}

| {{no}}

{{rh}} | SquirrelMail

| {{yes}}

| {{no}}

{{rh}} | Sylpheed

| {{yes}}

| {{no}}

{{rh}} | The Bat!

| {{yes}}

| {{no}}

{{rh}} | Trojitá

| {{yes}}

| {{no}}

| {{yes|MeeGo}}

{{rh2}} | Turnpike

| {{yes}}

| {{no}}

{{rh2}} | Vivaldi

| {{yes}}

| {{no}}

{{rh2}} | Windows Live Mail

| {{yes}}

| {{no}}

{{rh2}} | Windows Mail

| {{included}} (Vista)

| {{no}}

{{rh}} | YAM

| {{no}}

| {{Yes|AmigaOS
AROS
MorphOS}}

{{rh}} | Zimbra

| {{yes}}

| {{no}}

class="sortbottom"

! Client

! Microsoft Windows

! macOS

! Linux

! BSD

! Unix

! DOS

! Other

{{reflist|group=Note|refs=

Development stopped in 2008

Packaging planned

Free Software project, source available.

Free Software porting tangible provided OS has web browser.

}}

Protocol support

=Communication and access protocol support=

What email and related protocols and standards are supported by each client.

class="wikitable sortable sort-under sticky-header" ! style="width:12em" \| Client ! POP3 fetch all messages ([https://www.ietf.org/rfc/rfc1939.txt RFC 1939]) ! POP3 selected by filter ([https://www.ietf.org/rfc/rfc1939.txt RFC 1939]) ! POP3 selected by user ([https://www.ietf.org/rfc/rfc1939.txt RFC 1939]) ! IMAP4 ([https://www.ietf.org/rfc/rfc3501.txt RFC 3501]) ! SMTP ([https://www.ietf.org/rfc/rfc5321.txt RFC 5321]) ! NNTP ([https://www.ietf.org/rfc/rfc3977.txt RFC 3977]) ! LDAP v2 ([https://www.ietf.org/rfc/rfc4511.txt RFC 4511]) ! LDAP v3 ([https://www.ietf.org/rfc/rfc4511.txt RFC 4511]) ! EWS ! IPv6 ([https://www.ietf.org/rfc/rfc2460.txt RFC 2460]) ! MAPI
{{rh}} \| Alpine \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}}
{{rh}} \| Apple Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}}
{{rh}} \| Becky! Internet Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} {{r\|group=Note\|BECKY_frnews}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Canary Mail \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}}
{{rh}} \| Citadel \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Claws Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}}
{{rh2}} \| Courier \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Elm \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| eM Client \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}}
{{rh}} \| EmailTray \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Evolution \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes2\|plug-in}} \| {{dunno}} \| {{yes2\|plug-in}}
{{rh}} \| Gnus \| {{yes}} \| {{yes}} \| {{yes}}(setq gnus-select-method '(pop3 "pop.example.com")) (setq gnus-secondary-select-methods '((nntp "news.gnus.org"))) After configuring Gnus for POP3, you can use the gnus-group-get-new-news command to retrieve new messages from your POP3 server. \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes2\|Plug-in}}{{cite web \|title=w32-send-mapi.el \|url=https://www.emacswiki.org/emacs/w32-send-mapi.el}}
{{rh}} \| GroupWise \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}}
{{rh}} \| Hiri \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}}
{{rh}} \| i.Scribe / InScribe \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} {{r\|group=Note\|plugin}} \| {{yes}} {{r\|group=Note\|plugin}} \| {{no}} \| {{no}} \| {{yes}}
{{rh}} \| HCL Notes \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{no}}
{{rh}} \| KMail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} {{r\|group=Note\|KDENNTP}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Mailbird \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}}
{{rh}} \| Mailpile \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Microsoft Entourage \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{partial}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Microsoft Entourage 2008, Web Services Edition \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Microsoft Office Outlook \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}}
{{rh2}} \| Mozilla Mail & Newsgroups \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Mozilla Thunderbird \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{partial}} \| {{partial}}Write to LDAP still missing after 10 years, [https://bugzilla.mozilla.org/show_bug.cgi?id=86405 Mozilla bug 86405] \| extensibleAdd-ons include MesQuilla [http://mesquilla.com/extensions/exquilla/ ExQuilla Exchange Web Services (alpha)] (see also [https://addons.mozilla.org/en-US/thunderbird/addon/exquilla-exchange-web-services/ ExQuilla for Microsoft Exchange]) and [https://addons.mozilla.org/en-US/thunderbird/addon/provider-for-microsoft-exchang/ Provider for Microsoft Exchange] \| {{yes}} \| {{yes}}
{{rh2}} \| Mulberry \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}}
{{rh}} \| Mutt \| {{yes}} \| style="background: #ffffdd;" \| No (possible with POP3 browser) \| style="background: #ffffdd;" \| No (possible with POP3 browser) \| {{yes}} \| {{yes}} \| {{no}} (slrn looks alike) \| {{partial}} (resolve real names through NSS) \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}}
{{rh2}} \| Netscape Messenger \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Netscape Messenger 9 \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| nmh / MH \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{no}} \| {{dunno}} \| {{no}}
{{rh}} \| Opera Mail \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}} \| {{yes}} \| {{yes}}
{{rh2}} \| Outlook Express \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{dunno}} \| {{no}}
{{rh}} \| Pegasus Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} {{r\|group=Note\|pegasusaddins}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Pine \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Pocomail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| RoundCube \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| SeaMonkey Mail & Newsgroups \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{partial}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}}
{{rh}} \| SquirrelMail \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Sylpheed \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}}
{{rh}} \| The Bat! \| {{yes}} \| {{yes}} {{r\|group=Note\|SelectiveDownload}} \| {{yes}} {{r\|group=Note\|MessageDispatcher}} \| {{yes}} \| {{yes}} \| {{yes}} {{r\|group=Note\|BAT_mygate}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}}
{{rh}} \| Trojitá \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}}
{{rh2}} \| Turnpike \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Vivaldi \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}}
{{rh2}} \| Windows Live Mail \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{yes}} \| {{no}}
{{rh2}} \| Windows Mail \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{no}} \| {{yes}} \| {{no}}
{{rh}} \| YAM \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Zimbra \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
class="sortbottom" ! Client ! POP3 fetch all messages ([https://www.ietf.org/rfc/rfc1939.txt RFC 1939]) ! POP3 selected by filter ([https://www.ietf.org/rfc/rfc1939.txt RFC 1939]) ! POP3 selected by user ([https://www.ietf.org/rfc/rfc1939.txt RFC 1939]) ! IMAP4 ([https://www.ietf.org/rfc/rfc3501.txt RFC 3501]) ! SMTP ([https://www.ietf.org/rfc/rfc5321.txt RFC 5321]) ! NNTP ([https://www.ietf.org/rfc/rfc3977.txt RFC 3977]) ! LDAP v2 ([https://www.ietf.org/rfc/rfc4511.txt RFC 4511]) ! LDAP v3 ([https://www.ietf.org/rfc/rfc4511.txt RFC 4511]) ! EWS ! IPv6 ([https://www.ietf.org/rfc/rfc2460.txt RFC 2460]) ! MAPI

class="wikitable sortable sort-under sticky-header"

! style="width:12em" | Client

! POP3
fetch all messages
([https://www.ietf.org/rfc/rfc1939.txt RFC 1939])

! POP3
selected by filter
([https://www.ietf.org/rfc/rfc1939.txt RFC 1939])

! POP3
selected by user
([https://www.ietf.org/rfc/rfc1939.txt RFC 1939])

! IMAP4
([https://www.ietf.org/rfc/rfc3501.txt RFC 3501])

! SMTP
([https://www.ietf.org/rfc/rfc5321.txt RFC 5321])

! NNTP
([https://www.ietf.org/rfc/rfc3977.txt RFC 3977])

! LDAP v2
([https://www.ietf.org/rfc/rfc4511.txt RFC 4511])

! LDAP v3
([https://www.ietf.org/rfc/rfc4511.txt RFC 4511])

! EWS

! IPv6
([https://www.ietf.org/rfc/rfc2460.txt RFC 2460])

! MAPI

{{rh}} | Alpine

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Apple Mail

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Becky! Internet Mail

| {{yes}}

| {{yes}} {{r|group=Note|BECKY_frnews}}

| {{yes}}

| {{dunno}}

{{rh}} | Canary Mail

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | Citadel

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Claws Mail

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh2}} | Courier

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | Elm

| {{no}}

| {{dunno}}

{{rh}} | eM Client

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | EmailTray

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | Evolution

| {{yes}}

| {{no}}

| {{yes}}

| {{yes2|plug-in}}

| {{dunno}}

| {{yes2|plug-in}}

{{rh}} | Gnus

| {{yes}}

| {{yes}}(setq gnus-select-method '(pop3 "pop.example.com"))
(setq gnus-secondary-select-methods '((nntp "news.gnus.org")))
After configuring Gnus for POP3, you can use the gnus-group-get-new-news command to retrieve new messages from your POP3 server.

| {{yes}}

| {{no}}

| {{yes}}

| {{yes2|Plug-in}}{{cite web |title=w32-send-mapi.el |url=https://www.emacswiki.org/emacs/w32-send-mapi.el}}

{{rh}} | GroupWise

| {{yes}}

| {{no}}

| {{yes}}

{{rh}} | Hiri

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | i.Scribe / InScribe

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}} {{r|group=Note|plugin}}

| {{no}}

| {{yes}}

{{rh}} | HCL Notes

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | KMail

| {{yes}}

| {{no}} {{r|group=Note|KDENNTP}}

| {{yes}}

| {{dunno}}

{{rh}} | Mailbird

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Mailpile

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh2}} | Microsoft Entourage

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

| {{partial}}

| {{dunno}}

{{rh2}} | Microsoft Entourage 2008, Web Services Edition

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Mozilla Thunderbird

| {{yes}}

| {{no}}

| {{yes}}

| {{partial}}

| {{partial}}Write to LDAP still missing after 10 years, [https://bugzilla.mozilla.org/show_bug.cgi?id=86405 Mozilla bug 86405]

| extensibleAdd-ons include MesQuilla [http://mesquilla.com/extensions/exquilla/ ExQuilla Exchange Web Services (alpha)] (see also [https://addons.mozilla.org/en-US/thunderbird/addon/exquilla-exchange-web-services/ ExQuilla for Microsoft Exchange]) and

[https://addons.mozilla.org/en-US/thunderbird/addon/provider-for-microsoft-exchang/ Provider for Microsoft Exchange]

| {{yes}}

{{rh2}} | Mulberry

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

{{rh}} | Mutt

| {{yes}}

| style="background: #ffffdd;" | No (possible with POP3 browser)

| {{yes}}

| {{no}} (slrn looks alike)

| {{partial}} (resolve real names through NSS)

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh2}} | Netscape Messenger

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh2}} | Netscape Messenger 9

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | nmh / MH

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{dunno}}

| {{no}}

{{rh}} | Opera Mail

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

{{rh2}} | Outlook Express

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{dunno}}

| {{no}}

{{rh}} | Pegasus Mail

| {{yes}}

| {{yes}} {{r|group=Note|pegasusaddins}}

| {{yes}}

| {{dunno}}

{{rh2}} | Pine

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh2}} | Pocomail

| {{yes}}

| {{no}}

| {{dunno}}

{{rh}} | RoundCube

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | SeaMonkey Mail & Newsgroups

| {{yes}}

| {{no}}

| {{yes}}

| {{partial}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | SquirrelMail

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | Sylpheed

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | The Bat!

| {{yes}}

| {{yes}} {{r|group=Note|SelectiveDownload}}

| {{yes}} {{r|group=Note|MessageDispatcher}}

| {{yes}}

| {{yes}} {{r|group=Note|BAT_mygate}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh}} | Trojitá

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

{{rh2}} | Turnpike

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh2}} | Vivaldi

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

{{rh2}} | Windows Live Mail

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

{{rh2}} | Windows Mail

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | YAM

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh}} | Zimbra

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

class="sortbottom"

! Client

! POP3
fetch all messages
([https://www.ietf.org/rfc/rfc1939.txt RFC 1939])

! POP3
selected by filter
([https://www.ietf.org/rfc/rfc1939.txt RFC 1939])

! POP3
selected by user
([https://www.ietf.org/rfc/rfc1939.txt RFC 1939])

! IMAP4
([https://www.ietf.org/rfc/rfc3501.txt RFC 3501])

! SMTP
([https://www.ietf.org/rfc/rfc5321.txt RFC 5321])

! NNTP
([https://www.ietf.org/rfc/rfc3977.txt RFC 3977])

! LDAP v2
([https://www.ietf.org/rfc/rfc4511.txt RFC 4511])

! LDAP v3
([https://www.ietf.org/rfc/rfc4511.txt RFC 4511])

! EWS

! IPv6
([https://www.ietf.org/rfc/rfc2460.txt RFC 2460])

! MAPI

=Integration protocol support=

class="wikitable sortable sort-under sticky-header" ! style="width:12em" \| Client ! IMSP ([https://datatracker.ietf.org/doc/id/draft-myers-imap-imsp-00.txt]) ! ACAP ([https://www.ietf.org/rfc/rfc2244.txt RFC 2244]) ! RSS 0.91 Feeds ! RSS 1.0 Feeds ! RSS 2.0 Feeds ! ATOM Feeds ! iCalendar ([https://www.ietf.org/rfc/rfc5545.txt RFC 5545]) ! MAPI/RPC ! CalDAV ([https://www.ietf.org/rfc/rfc4791.txt RFC 4791]) ! CardDAV ([https://www.ietf.org/rfc/rfc6352.txt RFC 6352])
{{rh}} \| Alpine \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Apple Mail \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}}
{{rh}} \| Becky! Internet Mail \| {{dunno}} \| {{dunno}} \| {{yes}} {{r\|group=Note\|BECKY_rss}} \| {{yes}} {{r\|group=Note\|BECKY_rss}} \| {{yes}} {{r\|group=Note\|BECKY_rss}} \| {{yes}} {{r\|group=Note\|BECKY_rss}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Canary Mail \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Citadel \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Claws Mail \| {{dunno}} \| {{dunno}} \| {{no}} \| {{yes}} {{r\|group=Note\|Claws}} \| {{yes}} {{r\|group=Note\|Claws}} \| {{yes}} {{r\|group=Note\|Claws}} \| {{yes}} {{r\|group=Note\|Claws2}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Courier \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Elm \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| eM Client \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}}
{{rh}} \| EmailTray \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Eudora \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Evolution \| {{no}} \| {{no}} \| {{no}} {{r\|group=Note\|Evolution-rss}} \| {{no}} {{r\|group=Note\|Evolution-rss}} \| {{no}} {{r\|group=Note\|Evolution-rss}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}}
{{rh}} \| Gnus \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}}{{cite web \|title=GNU emacs - rss \|url=https://www.emacswiki.org/emacs/Rss}} \| {{yes}}via org-mode \| {{yes}} \| {{yes}} \| {{yes}}
{{rh}} \| GroupWise \| {{dunno}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Hiri \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| i.Scribe / InScribe \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{dunno}}
{{rh}} \| IBM Lotus Notes \| {{no}} \| {{no}} \| {{yes}} {{r\|group=Note\|NotesRSS}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| KMail \| {{dunno}} \| {{dunno}} \| {{yes}} {{r\|group=Note\|KDEFeeds}} \| {{yes}} {{r\|group=Note\|KDEFeeds}} \| {{yes}} {{r\|group=Note\|KDEFeeds}} \| {{yes}} {{r\|group=Note\|KDEFeeds}} \| {{yes}} {{r\|group=Note\|KDEiCal}} \| {{dunno}} \| {{yes}} \| {{yes}}
{{rh}} \| Mailpile \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Microsoft Entourage \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Microsoft Office Outlook \| {{dunno}} \| {{dunno}} \| {{yes}} {{r\|group=Note\|OutlookFeeds}} \| {{yes}} {{r\|group=Note\|OutlookFeeds}} \| {{yes}} {{r\|group=Note\|OutlookFeeds}} \| {{yes}} {{r\|group=Note\|OutlookFeeds}} \| {{partial\|Yes}} {{r\|group=Note\|OutlookiCal}} \| {{yes}} \| {{no}} \| {{no}}
{{rh2}} \| Mozilla Mail & Newsgroups \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Mozilla Thunderbird \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} {{r\|group=Note\|MTB}} \| {{yes}} {{r\|group=Note\|SimpleMAPI}} \| {{yes}} \| {{yes}}
{{rh2}} \| Mulberry \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}}
{{rh}} \| Mutt \| {{dunno}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Netscape Messenger \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Netscape Messenger 9 \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| nmh / MH \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Opera Mail \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{no}} \| {{no}}
{{rh2}} \| Outlook Express \| {{dunno}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{no}}
{{rh}} \| Pegasus Mail \| {{dunno}} \| {{dunno}} \| {{yes}} {{r\|group=Note\|pegasusaddins}} \| {{yes}} {{r\|group=Note\|pegasusaddins}} \| {{yes}} {{r\|group=Note\|pegasusaddins}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Pine \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Pocomail \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| SeaMonkey Mail & Newsgroups \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} {{r\|group=Note\|MTB}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| SquirrelMail \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Sylpheed \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}}
{{rh}} \| The Bat! \| {{no}} \| {{no}} \| {{yes}} {{r\|group=Note\|BAT_rss2pop3}} \| {{yes}} {{r\|group=Note\|BAT_rss2pop3}} \| {{yes}} {{r\|group=Note\|BAT_rss2pop3}} \| {{yes}} {{r\|group=Note\|BAT_rss2pop3}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{yes}}
{{rh}} \| Trojitá \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Turnpike \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Windows Live Mail \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Windows Mail \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| YAM \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Zimbra \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
class="sortbottom" ! Client ! IMSP ([https://datatracker.ietf.org/doc/id/draft-myers-imap-imsp-00.txt]) ! ACAP ([https://www.ietf.org/rfc/rfc2244.txt RFC 2244]) ! RSS 0.91 Feeds ! RSS 1.0 Feeds ! RSS 2.0 Feeds ! ATOM Feeds ! iCalendar ([https://www.ietf.org/rfc/rfc5545.txt RFC 5545]) ! MAPI/RPC ! CalDAV ([https://www.ietf.org/rfc/rfc4791.txt RFC 4791]) ! CardDAV ([https://www.ietf.org/rfc/rfc6352.txt RFC 6352])

class="wikitable sortable sort-under sticky-header"

! style="width:12em" | Client

! IMSP
([https://datatracker.ietf.org/doc/id/draft-myers-imap-imsp-00.txt])

! ACAP
([https://www.ietf.org/rfc/rfc2244.txt RFC 2244])

! RSS 0.91 Feeds

! RSS 1.0 Feeds

! RSS 2.0 Feeds

! ATOM Feeds

! iCalendar
([https://www.ietf.org/rfc/rfc5545.txt RFC 5545])

! MAPI/RPC

! CalDAV
([https://www.ietf.org/rfc/rfc4791.txt RFC 4791])

! CardDAV
([https://www.ietf.org/rfc/rfc6352.txt RFC 6352])

{{rh}} | Alpine

| {{dunno}}

{{rh}} | Apple Mail

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

{{rh}} | Becky! Internet Mail

| {{dunno}}

| {{yes}} {{r|group=Note|BECKY_rss}}

| {{dunno}}

{{rh}} | Canary Mail

| {{no}}

{{rh}} | Citadel

| {{dunno}}

{{rh}} | Claws Mail

| {{dunno}}

| {{no}}

| {{yes}} {{r|group=Note|Claws}}

| {{yes}} {{r|group=Note|Claws2}}

| {{dunno}}

{{rh2}} | Courier

| {{no}}

| {{dunno}}

{{rh}} | Elm

| {{dunno}}

{{rh}} | eM Client

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh}} | EmailTray

| {{no}}

| {{dunno}}

{{rh2}} | Eudora

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh}} | Evolution

| {{no}}

| {{no}} {{r|group=Note|Evolution-rss}}

| {{no}}

| {{yes}}

{{rh}} | Gnus

| {{no}}

| {{yes}}

| {{yes}}{{cite web |title=GNU emacs - rss |url=https://www.emacswiki.org/emacs/Rss}}

| {{yes}}via org-mode

| {{yes}}

{{rh}} | GroupWise

| {{dunno}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Hiri

| {{no}}

{{rh}} | i.Scribe / InScribe

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | IBM Lotus Notes

| {{no}}

| {{yes}} {{r|group=Note|NotesRSS}}

| {{yes}}

| {{dunno}}

{{rh}} | KMail

| {{dunno}}

| {{yes}} {{r|group=Note|KDEFeeds}}

| {{yes}} {{r|group=Note|KDEiCal}}

| {{dunno}}

| {{yes}}

{{rh}} | Mailpile

| {{dunno}}

{{rh2}} | Microsoft Entourage

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{dunno}}

| {{yes}} {{r|group=Note|OutlookFeeds}}

| {{partial|Yes}} {{r|group=Note|OutlookiCal}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh}} | Mozilla Thunderbird

| {{no}}

| {{yes}}

| {{yes}} {{r|group=Note|MTB}}

| {{yes}} {{r|group=Note|SimpleMAPI}}

| {{yes}}

{{rh2}} | Mulberry

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Mutt

| {{dunno}}

| {{no}}

| {{dunno}}

{{rh2}} | Netscape Messenger

| {{dunno}}

{{rh2}} | Netscape Messenger 9

| {{dunno}}

{{rh}} | nmh / MH

| {{dunno}}

{{rh}} | Opera Mail

| {{dunno}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

{{rh2}} | Outlook Express

| {{dunno}}

| {{no}}

| {{dunno}}

| {{no}}

{{rh}} | Pegasus Mail

| {{dunno}}

| {{yes}} {{r|group=Note|pegasusaddins}}

| {{dunno}}

{{rh2}} | Pine

| {{no}}

| {{dunno}}

{{rh2}} | Pocomail

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh}} | SeaMonkey Mail & Newsgroups

| {{no}}

| {{yes}}

| {{yes}} {{r|group=Note|MTB}}

| {{dunno}}

{{rh}} | SquirrelMail

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Sylpheed

| {{no}}

| {{dunno}}

{{rh}} | The Bat!

| {{no}}

| {{yes}} {{r|group=Note|BAT_rss2pop3}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

{{rh}} | Trojitá

| {{no}}

| {{dunno}}

{{rh2}} | Turnpike

| {{dunno}}

{{rh2}} | Windows Live Mail

| {{dunno}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh2}} | Windows Mail

| {{dunno}}

{{rh}} | YAM

| {{no}}

| {{dunno}}

{{rh}} | Zimbra

| {{dunno}}

| {{yes}}

| {{dunno}}

class="sortbottom"

! Client

! IMSP
([https://datatracker.ietf.org/doc/id/draft-myers-imap-imsp-00.txt])

! ACAP
([https://www.ietf.org/rfc/rfc2244.txt RFC 2244])

! RSS 0.91 Feeds

! RSS 1.0 Feeds

! RSS 2.0 Feeds

! ATOM Feeds

! iCalendar
([https://www.ietf.org/rfc/rfc5545.txt RFC 5545])

! MAPI/RPC

! CalDAV
([https://www.ietf.org/rfc/rfc4791.txt RFC 4791])

! CardDAV
([https://www.ietf.org/rfc/rfc6352.txt RFC 6352])

{{reflist|group=Note|refs=

Becky! requires BkBlogReader or BkRSSviewer or B.F.R or BkRssReader plugin installed for handling RSS and ATOM.

Becky! requires FRNews or BkNews plugin installed for handling NNTP.

KDE supports Newsgroups (NNTP) by the use of KNode

KDE supports feeds by the use of Akregator

KDE supports iCal by the use of KOrganizer

Studio Blog Reader is one RSS reader application for IBM Lotus Notes. IBM Lotus Notes version 8.x introduced a native RSS reader.

Support of feeds is available in Microsoft Office Outlook 2007. Earlier versions require [http://www.paradisoft.com/rsspopper/rsspopper.asp RSSPopper] plug-in.

Microsoft Outlook support of iCalendar varies by version.

Selective Download filters can skip/delete messages on POP3 server based on header (sender, recipient, subject, etc) information, this doesn't require to retrieve the full message body from the server.

Message Dispatcher allows the user to decide which messages should be retrieved, deleted or skipped based on the header information (sender, recipient, subject, etc) displayed to the user.

iCalendar is supported with an extension.

RSSyl plugin is required to read RSS and ATOM in Claws Mail.

vCalendar plugin is required to handle iCalendar in Claws Mail.

The Bat! requires MyGate plugin installed for handling NNTP.

The Bat! versions prior to 6.3 required rss2mail or rss2pop3 plugin installed for handling RSS and ATOM. The Bat! versions 6.3 and later have built-in support for RSS.

i.Scribe / InScribe requires a plugin to handle LDAP.

Pegasus Mail can convert Newsgroup messages and/or RSS feeds to emails through the use of free add-ons.

The evolution-rss plugin (provided as a separate package by many distributions provides the RSS functionality in Evolution.

Mozilla Thunderbird only supports SimpleMAPI.{{citation needed|date=May 2011}}

}}

=Authentication support=

class="wikitable sortable sort-under sticky-header-multi"
rowspan="2" \|Client ! colspan="2" \| Regular ! rowspan="2" {{verth\|va=middle\|MSN (NTLM) browser login}} ! rowspan="2" {{verth\|va=middle\|Compuserve (RPA)}} ! rowspan="2" {{verth\|va=middle\|MD5 APOP {{r\|group=Note\|APOP}}}} ! colspan="3" \| CRAM-HMAC {{r\|group=Note\|HMAC}} ! rowspan="2" {{verth\|va=middle\|DIGEST-MD5}} ! rowspan="2" {{verth\|va=middle\|SCRAM}} ! rowspan="2" {{verth\|va=middle\|with hardware token PKCS#11}} ! rowspan="2" {{verth\|va=middle\|Biometric}} ! rowspan="2" {{verth\|va=middle\|SMTP Auth {{r\|group=Note\|SMTPAUTH}}}} ! rowspan="2" {{verth\|va=middle\|X.509 Client certificate}} ! rowspan="2" {{verth\|va=middle\|OAuth}}
{{verth\|va=middle\|LOGIN}} ! {{verth\|va=middle\|PLAIN}} ! {{verth\|va=middle\|MD5}} ! {{verth\|va=middle\|SHA1}} ! {{verth\|va=middle\|RIPEMD}}
{{rh}} \| Alpine \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{dunno}}
{{rh}} \| Apple Mail \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} {{r\|group=Note\|AppleMailOAuth}}
{{rh}} \| Becky! Internet Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}}
{{rh}} \| Canary Mail \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}}
{{rh}} \| Citadel \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Claws Mail \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{yes}} \| {{no}} \| {{yes}}
{{rh2}} \| Courier \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}}
{{rh}} \| Elm \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| eM Client \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes}}
{{rh}} \| EmailTray \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{dunno}}
{{rh2}} \| Eudora \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Evolution \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes}}
{{rh}} \| Gnus \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}}
{{rh}} \| GroupWise \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Hiri \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}}
{{rh}} \| i.Scribe / InScribe \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes}}
{{rh}} \| IBM Lotus Notes \| {{yes}} \| {{dunno}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{dunno}}
{{rh}} \| KMail \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}}
{{rh}} \| Mailpile \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Microsoft Entourage \| {{yes}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{Yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{Yes}} \| {{dunno}} \| {{Yes}} \| {{Yes}} \| {{dunno}}
{{rh}} \| Microsoft Office Outlook \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{dunno}}
{{rh2}} \| Mozilla Mail & Newsgroups \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Mozilla Thunderbird \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}}{{Cite web\|url=https://bugzilla.mozilla.org/show_bug.cgi?id=335924\|title = 335924 - No authentication with DIGEST-MD5}} \| {{dunno}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}}
{{rh2}} \| Mulberry \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}}
{{rh}} \| Mutt \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no\|1.5.15}} \| {{yes}} \| {{no\|1.10.1}}
{{rh2}} \| Netscape Messenger \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Netscape Messenger 9 \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| nmh / MH \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Opera Mail \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}}
{{rh2}} \| Outlook Express \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{dunno}}
{{rh}} \| Pegasus Mail \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}}
{{rh2}} \| Pine \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{dunno}}
{{rh2}} \| Pocomail \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| RoundCube \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}}
{{rh}} \| SeaMonkey Mail & Newsgroups \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}}
{{rh}} \| SquirrelMail \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Sylpheed \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| The Bat! \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{yes}} {{r\|group=Note\|TheBat}} \| {{yes}} {{r\|group=Note\|TheBat}} \| {{yes}} \| {{no}} \| {{yes}}
{{rh}} \| Trojitá \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{dunno}}
{{rh2}} \| Turnpike \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Windows Live Mail \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh2}} \| Windows Mail \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} {{r\|group=Note\|WindowsMailOAuth}}
{{rh}} \| YAM \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes\|AmiSSL}} \| {{dunno}}
{{rh}} \| Zimbra \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} {{r\|group=Note\|Zimbra}} \| {{dunno}} \| {{dunno}}
class="sortbottom" ! rowspan="2" \|Client ! colspan="2" \| Regular ! rowspan="2" {{verth\|va=middle\|MSN (NTLM) browser login}} ! rowspan="2" {{verth\|va=middle\|Compuserve (RPA)}} ! rowspan="2" {{verth\|va=middle\|MD5 APOP {{r\|group=Note\|APOP}}}} ! colspan="3" \| CRAM-HMAC {{r\|group=Note\|HMAC}} ! rowspan="2" {{verth\|va=middle\|DIGEST-MD5}} ! rowspan="2" {{verth\|va=middle\|SCRAM}} ! rowspan="2" {{verth\|va=middle\|with hardware token PKCS#11}} ! rowspan="2" {{verth\|va=middle\|Biometric}} ! rowspan="2" {{verth\|va=middle\|SMTP Auth {{r\|group=Note\|SMTPAUTH}}}} ! rowspan="2" {{verth\|va=middle\|SSL/TLS Client Certificate}} ! rowspan="2" {{verth\|va=middle\|OAUTH}}
class="sortbottom" ! {{verth\|va=middle\|LOGIN}} ! {{verth\|va=middle\|PLAIN}} ! {{verth\|va=middle\|MD5}} ! {{verth\|va=middle\|SHA1}} ! {{verth\|va=middle\|RIPEMD}}

class="wikitable sortable sort-under sticky-header-multi"

rowspan="2" |Client

! colspan="2" | Regular

! rowspan="2" {{verth|va=middle|MSN (NTLM)
browser login}}

! rowspan="2" {{verth|va=middle|Compuserve
(RPA)}}

! rowspan="2" {{verth|va=middle|MD5 APOP {{r|group=Note|APOP}}}}

! colspan="3" | CRAM-HMAC
{{r|group=Note|HMAC}}

! rowspan="2" {{verth|va=middle|DIGEST-MD5}}

! rowspan="2" {{verth|va=middle|SCRAM}}

! rowspan="2" {{verth|va=middle|with hardware token
PKCS#11}}

! rowspan="2" {{verth|va=middle|Biometric}}

! rowspan="2" {{verth|va=middle|SMTP Auth {{r|group=Note|SMTPAUTH}}}}

! rowspan="2" {{verth|va=middle|X.509
Client certificate}}

! rowspan="2" {{verth|va=middle|OAuth}}

! {{verth|va=middle|PLAIN}}

! {{verth|va=middle|MD5}}

! {{verth|va=middle|SHA1}}

! {{verth|va=middle|RIPEMD}}

{{rh}} | Alpine

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh}} | Apple Mail

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{yes}} {{r|group=Note|AppleMailOAuth}}

{{rh}} | Becky! Internet Mail

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Canary Mail

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh}} | Citadel

| {{dunno}}

{{rh}} | Claws Mail

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh2}} | Courier

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | Elm

| {{dunno}}

{{rh}} | eM Client

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh}} | EmailTray

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh2}} | Eudora

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

| {{dunno}}

{{rh}} | Evolution

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh}} | Gnus

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | GroupWise

| {{dunno}}

{{rh}} | Hiri

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

| {{yes}}

{{rh}} | i.Scribe / InScribe

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh}} | IBM Lotus Notes

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | KMail

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | Mailpile

| {{dunno}}

{{rh2}} | Microsoft Entourage

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{Yes}}

| {{dunno}}

| {{Yes}}

| {{dunno}}

| {{Yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Mozilla Thunderbird

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{no}}{{Cite web|url=https://bugzilla.mozilla.org/show_bug.cgi?id=335924|title = 335924 - No authentication with DIGEST-MD5}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh2}} | Mulberry

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | Mutt

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{no|1.5.15}}

| {{yes}}

| {{no|1.10.1}}

{{rh2}} | Netscape Messenger

| {{dunno}}

{{rh2}} | Netscape Messenger 9

| {{dunno}}

{{rh}} | nmh / MH

| {{dunno}}

{{rh}} | Opera Mail

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh2}} | Outlook Express

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh}} | Pegasus Mail

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh2}} | Pine

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh2}} | Pocomail

| {{dunno}}

{{rh}} | RoundCube

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | SeaMonkey Mail & Newsgroups

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | SquirrelMail

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Sylpheed

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | The Bat!

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}} {{r|group=Note|TheBat}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh}} | Trojitá

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh2}} | Turnpike

| {{dunno}}

{{rh2}} | Windows Live Mail

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

{{rh2}} | Windows Mail

| {{dunno}}

| {{yes}} {{r|group=Note|WindowsMailOAuth}}

{{rh}} | YAM

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{yes|AmiSSL}}

| {{dunno}}

{{rh}} | Zimbra

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}} {{r|group=Note|Zimbra}}

| {{dunno}}

class="sortbottom"

! rowspan="2" |Client

! colspan="2" | Regular

! rowspan="2" {{verth|va=middle|MSN (NTLM)
browser login}}

! rowspan="2" {{verth|va=middle|Compuserve
(RPA)}}

! rowspan="2" {{verth|va=middle|MD5 APOP {{r|group=Note|APOP}}}}

! colspan="3" | CRAM-HMAC
{{r|group=Note|HMAC}}

! rowspan="2" {{verth|va=middle|DIGEST-MD5}}

! rowspan="2" {{verth|va=middle|SCRAM}}

! rowspan="2" {{verth|va=middle|with hardware token
PKCS#11}}

! rowspan="2" {{verth|va=middle|Biometric}}

! rowspan="2" {{verth|va=middle|SMTP Auth {{r|group=Note|SMTPAUTH}}}}

! rowspan="2" {{verth|va=middle|SSL/TLS
Client Certificate}}

! rowspan="2" {{verth|va=middle|OAUTH}}

class="sortbottom"

! {{verth|va=middle|LOGIN}}

! {{verth|va=middle|PLAIN}}

! {{verth|va=middle|MD5}}

! {{verth|va=middle|SHA1}}

! {{verth|va=middle|RIPEMD}}

{{reflist|group=Note|refs=

Minimum Mac OS version 10.11. Minimum iOS version 11.

Description: {{IETF RFC|1734}}

Description: {{IETF RFC|2195}}

Description: {{IETF RFC|2554}}

Professional Edition.

Windows 10 required.

[http://www.zimbra.com/desktop7/help/en_US/Zimbra_Mail_Help.htm#Getting_Started/Zimbra_User_Help.htm Zimbra Desktop supports SMTP auth, not sure about collaboration suite]

}}

=SSL and TLS support=

class="wikitable sortable sort-under sticky-header-multi"
rowspan="2" \| Client ! colspan="2" \| Secure POP3 ! colspan="2" \| Secure IMAP4 ! colspan="2" \| Secure SMTP ! colspan="2" \| Secure NNTP ! colspan="2" \| Secure LDAP ! rowspan="2" \| SNI ! rowspan="2" \| OCSP {{r\|group=Note\|OCSP}} ! rowspan="2" \| CRL {{r\|group=Note\|CRL}}
SSL ! TLS {{r\|group=Note\|IMAPPOP}} ! SSL ! TLS {{r\|group=Note\|IMAPPOP}} ! SSL ! TLS {{r\|group=Note\|SMTPTLS}} ! SSL ! TLS ! SSL ! TLS
{{rh}} \| Alpine \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Apple Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Becky! Internet Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Canary Mail \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Citadel \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Claws Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}}
{{rh2}} \| Courier \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Elm \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| eM Client \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{yes}}
{{rh}} \| EmailTray \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{no}}
{{rh2}} \| Eudora \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Evolution \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}}
{{rh}} \| Gnus \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| GroupWise \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Hiri \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| i.Scribe / InScribe \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{no}}
{{rh}} \| IBM Lotus Notes \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}}
{{rh}} \| KMail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Mailpile \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Microsoft Entourage \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{Yes}} \| {{dunno}} \| {{Yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Microsoft Office Outlook \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Mozilla Mail & Newsgroups \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Mozilla Thunderbird \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}}
{{rh2}} \| Mulberry \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Mutt \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no\|1.5.15}} \| {{no\|1.5.15}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Netscape Messenger \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Netscape Messenger 9 \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| nmh / MH \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Opera Mail \| {{yes}} \| {{partial}} {{r\|group=Note\|M2STLS}} \| {{yes}} \| {{partial}} {{r\|group=Note\|M2STLS}} \| {{yes}} \| {{partial}} {{r\|group=Note\|M2STLS}} \| {{yes}} \| {{no}} \| {{n/a}} \| {{n/a}} \| {{dunno}} \| {{yes}} \| {{yes}}
{{rh2}} \| Outlook Express \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Pegasus Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Pine \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Pocomail \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| RoundCube \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| SeaMonkey Mail & Newsgroups \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}}
{{rh}} \| SquirrelMail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Sylpheed \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| The Bat! \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} {{r\|group=Note\|TBCSP}} \| {{yes}} {{r\|group=Note\|TBCSP}}
{{rh}} \| Trojitá \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} (system) \| {{yes}} (system)
{{rh2}} \| Turnpike \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Windows Live Mail \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Windows Mail \| {{yes}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| YAM \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Zimbra \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
class="sortbottom" ! rowspan="2" \| Client ! colspan="2" \| Secure POP3 ! colspan="2" \| Secure IMAP4 ! colspan="2" \| Secure SMTP ! colspan="2" \| Secure NNTP ! colspan="2" \| Secure LDAP ! rowspan="2" \| SNI ! rowspan="2" \| OCSP {{r\|group=Note\|OCSP}} ! rowspan="2" \| CRL {{r\|group=Note\|CRL}}
class="sortbottom" ! SSL ! TLS {{r\|group=Note\|IMAPPOP}} ! SSL ! TLS {{r\|group=Note\|IMAPPOP}} ! SSL ! TLS {{r\|group=Note\|SMTPTLS}} ! SSL ! TLS ! SSL ! TLS

class="wikitable sortable sort-under sticky-header-multi"

rowspan="2" | Client

! colspan="2" | Secure POP3

! colspan="2" | Secure IMAP4

! colspan="2" | Secure SMTP

! colspan="2" | Secure NNTP

! colspan="2" | Secure LDAP

! rowspan="2" | SNI

! rowspan="2" | OCSP {{r|group=Note|OCSP}}

! rowspan="2" | CRL {{r|group=Note|CRL}}

SSL

! TLS {{r|group=Note|IMAPPOP}}

! SSL

! TLS {{r|group=Note|IMAPPOP}}

! SSL

! TLS {{r|group=Note|SMTPTLS}}

! SSL

! TLS

! SSL

! TLS

{{rh}} | Alpine

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Apple Mail

| {{yes}}

| {{dunno}}

{{rh}} | Becky! Internet Mail

| {{yes}}

| {{dunno}}

{{rh}} | Canary Mail

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | Citadel

| {{dunno}}

{{rh}} | Claws Mail

| {{yes}}

| {{dunno}}

| {{yes}}

{{rh2}} | Courier

| {{no}}

{{rh}} | Elm

| {{dunno}}

{{rh}} | eM Client

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

| {{yes}}

{{rh}} | EmailTray

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

{{rh2}} | Eudora

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | Evolution

| {{yes}}

| {{dunno}}

| {{no}}

{{rh}} | Gnus

| {{yes}}

| {{dunno}}

{{rh}} | GroupWise

| {{dunno}}

{{rh}} | Hiri

| {{no}}

{{rh}} | i.Scribe / InScribe

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

{{rh}} | IBM Lotus Notes

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

{{rh}} | KMail

| {{yes}}

| {{no}}

| {{dunno}}

{{rh}} | Mailpile

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh2}} | Microsoft Entourage

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{Yes}}

| {{dunno}}

| {{Yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{dunno}}

{{rh}} | Mozilla Thunderbird

| {{yes}}

| {{no}}

| {{yes}}

{{rh2}} | Mulberry

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | Mutt

| {{yes}}

| {{no|1.5.15}}

| {{dunno}}

{{rh2}} | Netscape Messenger

| {{dunno}}

{{rh2}} | Netscape Messenger 9

| {{dunno}}

{{rh}} | nmh / MH

| {{dunno}}

{{rh}} | Opera Mail

| {{yes}}

| {{partial}} {{r|group=Note|M2STLS}}

| {{yes}}

| {{partial}} {{r|group=Note|M2STLS}}

| {{yes}}

| {{partial}} {{r|group=Note|M2STLS}}

| {{yes}}

| {{no}}

| {{n/a}}

| {{dunno}}

| {{yes}}

{{rh2}} | Outlook Express

| {{yes}}

| {{dunno}}

{{rh}} | Pegasus Mail

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh2}} | Pine

| {{yes}}

| {{no}}

| {{dunno}}

{{rh2}} | Pocomail

| {{dunno}}

{{rh}} | RoundCube

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | SeaMonkey Mail & Newsgroups

| {{yes}}

{{rh}} | SquirrelMail

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | Sylpheed

| {{yes}}

| {{dunno}}

{{rh}} | The Bat!

| {{yes}}

| {{no}}

| {{yes}}

| {{yes}} {{r|group=Note|TBCSP}}

{{rh}} | Trojitá

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}} (system)

{{rh2}} | Turnpike

| {{dunno}}

{{rh2}} | Windows Live Mail

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh2}} | Windows Mail

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | YAM

| {{yes}}

| {{no}}

| {{dunno}}

{{rh}} | Zimbra

| {{yes}}

| {{dunno}}

class="sortbottom"

! rowspan="2" | Client

! colspan="2" | Secure POP3

! colspan="2" | Secure IMAP4

! colspan="2" | Secure SMTP

! colspan="2" | Secure NNTP

! colspan="2" | Secure LDAP

! rowspan="2" | SNI

! rowspan="2" | OCSP {{r|group=Note|OCSP}}

! rowspan="2" | CRL {{r|group=Note|CRL}}

class="sortbottom"

! SSL

! TLS {{r|group=Note|IMAPPOP}}

! SSL

! TLS {{r|group=Note|IMAPPOP}}

! SSL

! TLS {{r|group=Note|SMTPTLS}}

! SSL

! TLS

! SSL

! TLS

{{reflist|group=Note|refs=

Description: {{IETF RFC|2487}}

Description: {{IETF RFC|2595}}

Opera Mail does not support STARTTLS command on special ports, like 995 for pop3 connection

Online Certificate Status Protocol - Description: {{IETF RFC|2560}}

Certificate revocation list - Description: {{IETF RFC|3280}}

Since version 4.2, The Bat! supports two modes of X.509 certificate handling: Internal Implementation and via Microsoft CryptoAPI. CRLs and OCSP are only supported in the latter mode during TLS connections.

}}

Features

Information on what features each of the clients support.

=General features=

For all of these clients, the concept of "HTML support" does not mean that they can process the full range of HTML that a web browser can handle. Almost all email readers limit HTML features, either for security reasons, or because of the nature of the interface. CSS and JavaScript can be especially problematic.

class="wikitable sortable sort-under sticky-header-multi"
rowspan="2" \| Client ! rowspan="2" {{verth\|va=middle\|HTML email}} ! rowspan="2" {{verth\|va=middle\|UTF-8 support}} ! rowspan="2" {{verth\|va=middle\|Image blocking}} ! colspan="2" \| Junk filtering ! rowspan="2" {{verth\|va=middle\|Phishing filtering}} ! rowspan="2" {{verth\|va=middle\|Thread view}} ! rowspan="2" {{verth\|va=middle\|Conversation view}} ! colspan="2" \| PGP support ! colspan="4" \| S/MIME support
local ! server- side ! inline ! PGP/MIME or OpenPGP ! protocol ! OCSP ! CRL ! certificates on tokens, smartcards support
{{rh}} \| Alpine \| {{partial\|Read only}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Apple Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}}
{{rh}} \| Becky! Internet Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Canary Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Citadel \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} {{r\|group=Note\|CITADELspam}} \| {{dunno}} \| {{dunno}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Claws Mail \| {{partial\|Read-only}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}}
{{rh2}} \| Courier \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Elm \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| eM Client \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}}
{{rh}} \| EmailTray \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh2}} \| Eudora \| {{yes}} \| {{no}} \| {{yes}} \| {{included\|Pro only}} \| {{included\|Pro only}} \| {{dunno}} \| {{yes}} \| {{No}} \| {{yes}} {{r\|group=Note\|EUDORAPGP}} \| {{yes}} {{r\|group=Note\|EUDORAPGP}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Evolution \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Gnus \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}}
{{rh}} \| GroupWise \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Hiri \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| i.Scribe / InScribe \| {{partial\|Read-only}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| HCL Notes \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} {{r\|group=Note\|NotesThread}} \| {{dunno}} \| {{yes}} \| {{yes}} (4.1.2+) \| {{yes}} \| {{yes}}{{Cite web\|url=http://publib-b.boulder.ibm.com/lotus/c2359840.nsf/b3266a3c17f9bb7085256b870069c0a9/9b7f328aa2eacd9385257361004fd8a4?OpenDocument\|title=HCL Product Documentation}} \| {{yes}} \| {{yes}}
{{rh}} \| KMail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} (with GPG) \| {{yes}} (1.5+, with GPGME) \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}}
{{rh2}} \| Mailbird \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Mailpile \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Microsoft Entourage \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{Yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{Yes}}
{{rh}} \| Microsoft Office Outlook \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} (2010+){{Cite web \|url=http://www.howtogeek.com/howto/17937/sort-your-emails-by-conversation-in-outlook-2010/ \|title=Sort Your Emails by Conversation in Outlook 2010 - How-To Geek \|access-date=2011-04-12 \|archive-date=2011-06-25 \|archive-url=https://web.archive.org/web/20110625114031/http://www.howtogeek.com/howto/17937/sort-your-emails-by-conversation-in-outlook-2010 \|url-status=dead }} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}}
{{rh2}} \| Mozilla Mail & Newsgroups \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Mozilla Thunderbird \| {{yes}} \| {{yes}} {{r\|group=Note\|MTBUTF8}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} {{r\|group=Note\|MTB15}} \| {{yes}} \| {{yes}} \| {{yes}} {{r\|group=Note\|MTBPGP}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}}
{{rh2}} \| Mulberry \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} {{r\|group=Note\|MulberryEncryption}} \| {{yes}} {{r\|group=Note\|MulberryEncryption}} \| {{yes}} {{r\|group=Note\|MulberryEncryption}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Mutt \| {{partial\|Read-only}} \| {{yes}} \| style="background: #ffffdd;" \| Yes (no support for images) \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} (with GPGME) \| {{dunno}}
{{rh2}} \| Netscape Messenger \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Netscape Messenger 9 \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| nmh / MH \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Opera Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh2}} \| Outlook Express \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} {{r\|group=Note\|OEPGP}} \| {{no}} {{r\|group=Note\|OEPGPMIME}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Pegasus Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| style="background: #ffffdd;" \| Yes (sending is broken) \| {{dunno}} \| {{no}} \| {{no}} \| {{no}}
{{rh2}} \| Pine \| {{partial\|Read-only}} \| {{yes}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} (with Pine Privacy Guard) \| {{no}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Pocomail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| RoundCube \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} (depends on antivirus) \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| SeaMonkey Mail & Newsgroups \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} {{r\|group=Note\|MTBPGP}} \| {{yes}} {{r\|group=Note\|MTBPGP}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}}
{{rh}} \| SquirrelMail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} (depends on antivirus) \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Sylpheed \| {{no}} {{r\|group=Note\|SYLHTML}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| The Bat! \| {{yes}} \| {{yes}} \| {{yes}} {{r\|group=Note\|TBIMAGE}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{partial}} {{r\|group=Note\|TBCRL}} \| {{partial}} {{r\|group=Note\|TBCRL}} \| {{yes}} {{r\|group=Note\|TBCRL}}
{{rh}} \| Trojitá \| {{partial\|Read only}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{partial\|Read only}} \| {{partial\|Read only}} \| {{partial\|Read only}} \| {{partial\|Read only}} \| {{partial\|Read only}}
{{rh2}} \| Turnpike \| {{partial\|Read-only}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Windows Live Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Windows Mail \| {{Yes}} \| {{yes}} \| {{dunno}} \| {{Yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| YAM \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Zimbra \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} (depends on antivirus) \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{No}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \|
class="sortbottom" ! rowspan="2" \| Client ! rowspan="2" {{verth\|va=middle\|HTML email}} ! rowspan="2" {{verth\|va=middle\|UTF-8 support}} ! rowspan="2" {{verth\|va=middle\|Image blocking}} ! colspan="2" \| Junk filtering ! rowspan="2" {{verth\|va=middle\|Phishing filtering}} ! rowspan="2" {{verth\|va=middle\|Thread view}} ! rowspan="2" {{verth\|va=middle\|Conversation view}} ! colspan="2" \| PGP support ! colspan="4" \| S/MIME support
class="sortbottom" ! local ! server- side ! inline ! PGP/MIME or OpenPGP ! protocol ! OCSP ! CRL ! certificates on tokens, smartcards support

class="wikitable sortable sort-under sticky-header-multi"

rowspan="2" | Client

! rowspan="2" {{verth|va=middle|HTML email}}

! rowspan="2" {{verth|va=middle|UTF-8 support}}

! rowspan="2" {{verth|va=middle|Image blocking}}

! colspan="2" | Junk filtering

! rowspan="2" {{verth|va=middle|Phishing filtering}}

! rowspan="2" {{verth|va=middle|Thread view}}

! rowspan="2" {{verth|va=middle|Conversation view}}

! colspan="2" | PGP support

! colspan="4" | S/MIME support

local

! server- side

! inline

! PGP/MIME or OpenPGP

! protocol

! OCSP

! CRL

! certificates on tokens,
smartcards support

{{rh}} | Alpine

| {{partial|Read only}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Apple Mail

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | Becky! Internet Mail

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Canary Mail

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

{{rh}} | Citadel

| {{yes}}

| {{no}}

| {{yes}} {{r|group=Note|CITADELspam}}

| {{dunno}}

| {{no}}

| {{dunno}}

{{rh}} | Claws Mail

| {{partial|Read-only}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

{{rh2}} | Courier

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{dunno}}

{{rh}} | Elm

| {{dunno}}

{{rh}} | eM Client

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh}} | EmailTray

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

{{rh2}} | Eudora

| {{yes}}

| {{no}}

| {{yes}}

| {{included|Pro only}}

| {{dunno}}

| {{yes}}

| {{No}}

| {{yes}} {{r|group=Note|EUDORAPGP}}

| {{yes}}

| {{dunno}}

{{rh}} | Evolution

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | Gnus

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

{{rh}} | GroupWise

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Hiri

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

{{rh}} | i.Scribe / InScribe

| {{partial|Read-only}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

{{rh}} | HCL Notes

| {{yes}}

| {{yes}} {{r|group=Note|NotesThread}}

| {{dunno}}

| {{yes}}

| {{yes}}
(4.1.2+)

| {{yes}}

| {{yes}}{{Cite web|url=http://publib-b.boulder.ibm.com/lotus/c2359840.nsf/b3266a3c17f9bb7085256b870069c0a9/9b7f328aa2eacd9385257361004fd8a4?OpenDocument|title=HCL Product Documentation}}

| {{yes}}

{{rh}} | KMail

| {{yes}}

| {{dunno}}

| {{yes}}

| {{yes}}
(with GPG)

| {{yes}}
(1.5+, with GPGME)

| {{yes}}

| {{dunno}}

{{rh2}} | Mailbird

| {{yes}}

| {{dunno}}

| {{no}}

{{rh}} | Mailpile

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh2}} | Microsoft Entourage

| {{yes}}

| {{dunno}}

| {{Yes}}

| {{yes}}

| {{dunno}}

| {{Yes}}

| {{yes}}

| {{yes}} (2010+){{Cite web |url=http://www.howtogeek.com/howto/17937/sort-your-emails-by-conversation-in-outlook-2010/ |title=Sort Your Emails by Conversation in Outlook 2010 - How-To Geek |access-date=2011-04-12 |archive-date=2011-06-25 |archive-url=https://web.archive.org/web/20110625114031/http://www.howtogeek.com/howto/17937/sort-your-emails-by-conversation-in-outlook-2010 |url-status=dead }}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Mozilla Thunderbird

| {{yes}}

| {{yes}} {{r|group=Note|MTBUTF8}}

| {{yes}}

| {{yes}} {{r|group=Note|MTB15}}

| {{yes}}

| {{yes}} {{r|group=Note|MTBPGP}}

| {{yes}}

| {{dunno}}

| {{yes}}

{{rh2}} | Mulberry

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}} {{r|group=Note|MulberryEncryption}}

| {{dunno}}

{{rh}} | Mutt

| {{partial|Read-only}}

| {{yes}}

| style="background: #ffffdd;" | Yes
(no support for images)

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}} (with GPGME)

| {{dunno}}

{{rh2}} | Netscape Messenger

| {{dunno}}

{{rh2}} | Netscape Messenger 9

| {{dunno}}

{{rh}} | nmh / MH

| {{dunno}}

{{rh}} | Opera Mail

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

{{rh2}} | Outlook Express

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}} {{r|group=Note|OEPGP}}

| {{no}} {{r|group=Note|OEPGPMIME}}

| {{yes}}

| {{dunno}}

{{rh}} | Pegasus Mail

| {{yes}}

| {{dunno}}

| {{yes}}

| style="background: #ffffdd;" | Yes
(sending is broken)

| {{dunno}}

| {{no}}

{{rh2}} | Pine

| {{partial|Read-only}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}
(with Pine Privacy Guard)

| {{no}}

| {{yes}}

| {{dunno}}

{{rh2}} | Pocomail

| {{yes}}

| {{dunno}}

{{rh}} | RoundCube

| {{yes}}

| {{yes}} (depends on antivirus)

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | SeaMonkey Mail & Newsgroups

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}} {{r|group=Note|MTBPGP}}

| {{yes}}

| {{dunno}}

| {{yes}}

{{rh}} | SquirrelMail

| {{yes}}

| {{yes}} (depends on antivirus)

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Sylpheed

| {{no}} {{r|group=Note|SYLHTML}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | The Bat!

| {{yes}}

| {{yes}} {{r|group=Note|TBIMAGE}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{partial}} {{r|group=Note|TBCRL}}

| {{yes}} {{r|group=Note|TBCRL}}

{{rh}} | Trojitá

| {{partial|Read only}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{partial|Read only}}

{{rh2}} | Turnpike

| {{partial|Read-only}}

| {{dunno}}

{{rh2}} | Windows Live Mail

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh2}} | Windows Mail

| {{Yes}}

| {{yes}}

| {{dunno}}

| {{Yes}}

| {{dunno}}

{{rh}} | YAM

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | Zimbra

| {{yes}}

| {{yes}} (depends on antivirus)

| {{yes}}

| {{dunno}}

| {{No}}

| {{dunno}}

|

class="sortbottom"

! rowspan="2" | Client

! rowspan="2" {{verth|va=middle|HTML email}}

! rowspan="2" {{verth|va=middle|UTF-8 support}}

! rowspan="2" {{verth|va=middle|Image blocking}}

! colspan="2" | Junk filtering

! rowspan="2" {{verth|va=middle|Phishing filtering}}

! rowspan="2" {{verth|va=middle|Thread view}}

! rowspan="2" {{verth|va=middle|Conversation view}}

! colspan="2" | PGP support

! colspan="4" | S/MIME support

class="sortbottom"

! local

! server- side

! inline

! PGP/MIME or OpenPGP

! protocol

! OCSP

! CRL

! certificates on tokens,
smartcards support

{{reflist|group=Note|refs=

{{#tag:ref|The Bat! supports two modes of S/MIME: Internal Implementation and via Microsoft CryptoAPI.{{cite web |url=http://www.ritlabs.com/en/products/thebat/features.php |title=List of features of The Bat! email client}} CRLs and OCSP are only supported in the latter mode. Internal implementation only supports Aladdin eToken Pro or Rainbow iKey1000{{cite web |url=http://www.ritlabs.com/en/products/securebat/ |title=The Bat! with Hardware Tokens}} tokens and can import certificates (from PKCS#12/PFX format) which were created outside The Bat!. CryptoAPI supports any kind of tokens and smart cards which have a corresponding Cryptographic Service Provider installed.|name=TBCRL|group=Note}}

Citadel plugs Mail into SpamAssassin

Eudora requires a plugin to handle PGP.

Although Thunderbird supports UTF-8, its handling of line wraps causes problems with long lines of text that don't contain spaces, which essentially makes it unusable for certain languages (e.g. Chinese, Japanese, Korean) [https://bugzilla.mozilla.org/show_bug.cgi?id=653342]

Mozilla Thunderbird adds this feature in Thunderbird 1.5.0.4

Using PGP in Thunderbird before version 78 requires Enigmail.

PGP/GPG and S/MIME support require a free (included) plugin.

First release 6.0 (September 2003), [http://www-128.ibm.com/developerworks/lotus/library/notes-designer7-features/] enhancements introduced in release 7.0 (August 2005)

Using PGP in Outlook Express requires a plugin.

Outlook Express does not display PGP/MIME signed messages.

Sylpheed has some limited ability to show HTML email. It can show the plain text that's left after stripping away all the HTML tags. Sylpheed has no ability to compose HTML.

The Bat is not able to display inline images.

}}

=Messages features=

class="wikitable sortable sort-under sticky-header-multi"
rowspan="2" \| Client ! colspan="4" \| Label messages ! colspan="2" \| Reformat received messages ! rowspan="2" {{verth\|va=middle\|Bi-directional text support}} ! colspan="3" \| Composing messages ! colspan="5" \| Native images preview ! rowspan="2" {{verth\|va=middle\|Postpone/scheduled message sending}} ! colspan="7" \| Native documents preview
{{verth\|va=middle\|with colors}} ! {{verth\|va=middle\|with flag}} ! {{verth\|va=middle\|antidelete}} ! {{verth\|va=middle\|add note}} ! {{verth\|va=middle\|edit headers (e.g., Subject)}} ! {{verth\|va=middle\|forced recode {{r\|group=Note\|recode}}}} ! {{verth\|va=middle\|Spell checking}} ! {{verth\|va=middle\|Signatures}} ! {{verth\|va=middle\|Bottom-posts replies}} ! jpeg ! gif ! bmp ! png ! others ! txt ! pdf ! doc ! xls ! odt ! ods ! others
{{rh}} \| Alpine \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Becky! Internet Mail \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Canary Mail \| {{dunno}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}}
{{rh}} \| Citadel \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Claws Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes\|with a plugin}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Courier \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}}
{{rh}} \| Elm \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| eM Client \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| EmailTray \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}}
{{rh2}} \| Eudora \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{Yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes\| QuickTime}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Evolution \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{no}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Gnus \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes\|XPM}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| GroupWise \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}}
{{rh}} \| Hiri \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| i.Scribe / InScribe \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} {{r\|group=Note\|SCRIBE_spell}} \| {{yes}} \| {{yes}} \| {{yes}} {{r\|group=Note\|SCRIBE_jpeg}} \| {{yes}} \| {{yes}} \| {{yes}} {{r\|group=Note\|SCRIBE_png}} \| {{yes\|ICO, TIFF}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| HCL Notes \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes\|CGM, Lotus PIC, PCX, TIFF}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| KMail \| {{Yes}} {{cite web \|url=https://docs.kde.org/trunk5/en/pim/kmail2/configure-appearance.html \|title=Configure KMail: Appearance Page \|website=KDE \|type=Documentation page \|archive-url=https://web.archive.org/web/20180530222937/https://docs.kde.org/trunk5/en/pim/kmail2/configure-appearance.html \|archive-date=May 30, 2018 \|url-status=live \|access-date=May 30, 2018}} \| {{yes}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Mailbird \| {{yes}} \| {{yes}} \| {{dunno}} \| {{Yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}}
{{rh}} \| Mailpile \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Microsoft Entourage \| {{yes}} \| {{yes}} \| {{dunno}} \| {{Yes}} {{r\|group=Note\|eragenotes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{Yes}} \| {{Yes}} \| {{dunno}} \| {{Yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Microsoft Office Outlook \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes\|with a plugin}} \| {{yes}} \| {{yes}} \| {{yes\|2010}} \| {{yes\|2010}} \| PowerPoint
{{rh2}} \| Mozilla Mail & Newsgroups \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Mozilla Thunderbird \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{partial\|with a plugin}}{{Cite web\|url=https://addons.thunderbird.net/addon/header-tools-lite/\|title=Header Tools Lite\|date=8 September 2022 }} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} {{r\|group=Note\|Thunderbird_reply_format}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes\|ICO}} \| {{yes}} {{r\|group=Note\|TbirdSl8Tr}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh2}} \| Mulberry \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Mutt \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes\|postpone}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Netscape Messenger \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Netscape Messenger 9 \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| nmh / MH \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Opera Mail \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes\|APNG, ICO, SVG, WBMP, XBM, WebP}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh2}} \| Outlook Express \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes\|ICO, art}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Pegasus Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes\|in index}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} {{r\|group=Note\|Pegasus_reply_format}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{Yes}} \| {{yes\|TIFF}} \| {{N/A}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes\|RTF, HTML}}
{{rh2}} \| Pine \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{no}} \| {{yes\|with a patch}} {{r\|group=Note\|PINE_recode}} \| {{dunno}} \| {{yes}} {{r\|group=Note\|PINE_spell}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Pocomail \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| RoundCube \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}}
{{rh}} \| SeaMonkey Mail & Newsgroups \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| SquirrelMail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}}
{{rh}} \| Sylpheed \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}}
{{rh}} \| The Bat! \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes\|ICO, emf}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Trojitá \| {{no}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}}
{{rh2}} \| Turnpike \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Windows Live Mail \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Windows Mail \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| YAM \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}}
{{rh}} \| Zimbra \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
class="sortbottom" ! rowspan="2" \| Client ! colspan="4" \| Label messages ! colspan="2" \| Reformat received messages ! rowspan="2" {{verth\|va=middle\|Bi-directional text support}} ! colspan="3" \| Composing messages ! colspan="5" \| Native images preview ! rowspan="2" {{verth\|va=middle\|Postpone/scheduled message sending}} ! colspan="7" \| Native documents preview
class="sortbottom" ! {{verth\|va=middle\|with colors}} ! {{verth\|va=middle\|with flag}} ! {{verth\|va=middle\|antidelete}} ! {{verth\|va=middle\|add note}} ! {{verth\|va=middle\|edit headers (e.g., Subject)}} ! {{verth\|va=middle\|forced recode {{r\|group=Note\|recode}}}} ! {{verth\|va=middle\|Spell checking}} ! {{verth\|va=middle\|Signatures}} ! {{verth\|va=middle\|Bottom-posts replies}} ! jpeg ! gif ! bmp ! png ! others ! txt ! pdf ! doc ! xls ! odt ! ods ! others

class="wikitable sortable sort-under sticky-header-multi"

rowspan="2" | Client

! colspan="4" | Label messages

! colspan="2" | Reformat received messages

! rowspan="2" {{verth|va=middle|Bi-directional text support}}

! colspan="3" | Composing messages

! colspan="5" | Native images preview

! rowspan="2" {{verth|va=middle|Postpone/scheduled
message sending}}

! colspan="7" | Native documents preview

! {{verth|va=middle|with flag}}

! {{verth|va=middle|antidelete}}

! {{verth|va=middle|add note}}

! {{verth|va=middle|edit headers
(e.g., Subject)}}

! {{verth|va=middle|forced recode
{{r|group=Note|recode}}}}

! {{verth|va=middle|Spell checking}}

! {{verth|va=middle|Signatures}}

! {{verth|va=middle|Bottom-posts
replies}}

! jpeg

! gif

! bmp

! png

! others

! txt

! pdf

! doc

! xls

! odt

! ods

! others

{{rh}} | Alpine

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Becky! Internet Mail

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Canary Mail

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh}} | Citadel

| {{dunno}}

{{rh}} | Claws Mail

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{yes|with a plugin}}

| {{dunno}}

{{rh2}} | Courier

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{dunno}}

{{rh}} | Elm

| {{dunno}}

{{rh}} | eM Client

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | EmailTray

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh2}} | Eudora

| {{yes}}

| {{no}}

| {{Yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{yes| QuickTime}}

| {{yes}}

| {{dunno}}

{{rh}} | Evolution

| {{yes}}

| {{dunno}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Gnus

| {{yes}}

| {{dunno}}

| {{yes}}

| {{yes|XPM}}

| {{yes}}

| {{dunno}}

{{rh}} | GroupWise

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Hiri

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | i.Scribe / InScribe

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}} {{r|group=Note|SCRIBE_spell}}

| {{yes}}

| {{yes}} {{r|group=Note|SCRIBE_jpeg}}

| {{yes}}

| {{yes}} {{r|group=Note|SCRIBE_png}}

| {{yes|ICO, TIFF}}

| {{yes}}

| {{no}}

{{rh}} | HCL Notes

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes|CGM, Lotus PIC, PCX, TIFF}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | KMail

| {{Yes}}
{{cite web |url=https://docs.kde.org/trunk5/en/pim/kmail2/configure-appearance.html |title=Configure KMail: Appearance Page |website=KDE |type=Documentation page |archive-url=https://web.archive.org/web/20180530222937/https://docs.kde.org/trunk5/en/pim/kmail2/configure-appearance.html |archive-date=May 30, 2018 |url-status=live |access-date=May 30, 2018}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh2}} | Mailbird

| {{yes}}

| {{dunno}}

| {{Yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh}} | Mailpile

| {{dunno}}

{{rh2}} | Microsoft Entourage

| {{yes}}

| {{dunno}}

| {{Yes}}
{{r|group=Note|eragenotes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{Yes}}

| {{dunno}}

| {{Yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{yes|with a plugin}}

| {{yes}}

| {{yes|2010}}

| PowerPoint

| {{dunno}}

{{rh}} | Mozilla Thunderbird

| {{yes}}

| {{dunno}}

| {{partial|with a plugin}}{{Cite web|url=https://addons.thunderbird.net/addon/header-tools-lite/|title=Header Tools Lite|date=8 September 2022 }}

| {{dunno}}

| {{yes}}

| {{yes}} {{r|group=Note|Thunderbird_reply_format}}

| {{yes}}

| {{yes|ICO}}

| {{yes}} {{r|group=Note|TbirdSl8Tr}}

| {{yes}}

| {{no}}

{{rh2}} | Mulberry

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{dunno}}

{{rh}} | Mutt

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes|postpone}}

| {{dunno}}

{{rh2}} | Netscape Messenger

| {{dunno}}

{{rh2}} | Netscape Messenger 9

| {{dunno}}

{{rh}} | nmh / MH

| {{dunno}}

{{rh}} | Opera Mail

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{yes|APNG, ICO, SVG, WBMP, XBM, WebP}}

| {{no}}

{{rh2}} | Outlook Express

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{yes|ICO, art}}

| {{dunno}}

{{rh}} | Pegasus Mail

| {{yes}}

| {{yes|in index}}

| {{no}}

| {{yes}}

| {{no}} {{r|group=Note|Pegasus_reply_format}}

| {{yes}}

| {{Yes}}

| {{yes|TIFF}}

| {{N/A}}

| {{yes}}

| {{no}}

| {{yes|RTF, HTML}}

{{rh2}} | Pine

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes|with a patch}} {{r|group=Note|PINE_recode}}

| {{dunno}}

| {{yes}} {{r|group=Note|PINE_spell}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{dunno}}

{{rh2}} | Pocomail

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | RoundCube

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | SeaMonkey Mail & Newsgroups

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | SquirrelMail

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | Sylpheed

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh}} | The Bat!

| {{yes}}

| {{no}}

| {{yes}}

| {{yes|ICO, emf}}

| {{yes}}

| {{no}}

{{rh}} | Trojitá

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh2}} | Turnpike

| {{yes}}

| {{dunno}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh2}} | Windows Live Mail

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh2}} | Windows Mail

| {{dunno}}

{{rh}} | YAM

| {{no}}

| {{yes}}

{{rh}} | Zimbra

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

class="sortbottom"

! rowspan="2" | Client

! colspan="4" | Label messages

! colspan="2" | Reformat received messages

! rowspan="2" {{verth|va=middle|Bi-directional text support}}

! colspan="3" | Composing messages

! colspan="5" | Native images preview

! rowspan="2" {{verth|va=middle|Postpone/scheduled
message sending}}

! colspan="7" | Native documents preview

class="sortbottom"

! {{verth|va=middle|with colors}}

! {{verth|va=middle|with flag}}

! {{verth|va=middle|antidelete}}

! {{verth|va=middle|add note}}

! {{verth|va=middle|edit headers
(e.g., Subject)}}

! {{verth|va=middle|forced recode
{{r|group=Note|recode}}}}

! {{verth|va=middle|Spell checking}}

! {{verth|va=middle|Signatures}}

! {{verth|va=middle|Bottom-posts
replies}}

! jpeg

! gif

! bmp

! png

! others

! txt

! pdf

! doc

! xls

! odt

! ods

! others

{{reflist|group=Note|refs=

It's a frequent problem for people dealing with Cyrillic/Russian in email messages that the message is not encoded in the encoding declared in its headers and thus can't be read. With such a message (with a wrong declaration of the encoding), it well might be the case that it passed through several incorrect recoding stages while it was being sent and delivered; thus it's not possible to correctly render it and read it if one uses the common type of the interface for choosing the encoding (such as the menu in Mozilla Firefox). An example of such a complex case of a wrongly declared encoding: a message was entered through a webform in the windows-1251 encoding, but the web interface incorrectly assumed that it was in latin-1; based on this assumption, it performed the recoding from latin-1 to utf-8. The result of this operation cannot be correctly decoded through the common encoding-selection interface; it can only be decoded through a two-stage recoding: first from utf-8 to latin-1, then from windows-1251 to utf-8 (assuming that one works in a Unicode environment). After it is decoded, it is desirable to store it in the recoded form instead of the original, in order to be able to read it easily afterwards, and to quote it for replies.

Pine supports full integration with GNU Aspell or other external speller, which is its requirement for spell checking.

The recoding engine and interface extensions that would solve the described recoding problems have been developed as a patch for Pine; it is to be found in the package [http://sisyphus.ru/en/srpm/Branch3/pine/get pine-4.58L-alt4.src.rpm] {{Webarchive|url=https://web.archive.org/web/20110827084354/http://sisyphus.ru/en/srpm/Branch3/pine/get |date=2011-08-27 }}([http://ftp.altlinux.org/pub/distributions/ALTLinux/3.0/files/SRPMS/pine-4.58L-alt4.src.rpm ftp]) for ALTLinux (under the name [http://sisyphus.ru/en/srpm/Branch3/pine/patches/1 pine-4.58L-alt2-0.4.1.diff]). Its essential feature is to enable to forcibly recode messages, save them in the recoded form, and quote in replies.

i.Scribe / InScribe supports full integration with GNU Aspell, which is its requirement for spell checking.

i.Scribe / InScribe requires libjpeg.

i.Scribe / InScribe requires libpng.

Entourage can link a message to a note.

Thunderbird requires SL8TR extension.

Configurable to start replies at top or bottom, with separate configuration of signature position

Starts replies with cursor at top, but is configurable regarding whether to include a blank space at the top for replies or not; some interleaved-posting users prefer starting the cursor at the top so they can trim the quotes

}}

=Database, folders and customization=

class="wikitable sortable sort-under sticky-header-multi"

class="wikitable sortable sort-under sticky-header-multi"
rowspan="2" \| Client ! rowspan="2" \| Message file format ! rowspan="2" \| Encrypted database ! rowspan="2" \| Virtual folders ! rowspan="2" {{verth\|va=middle\|Scheduled backup}} ! colspan="4" \| New mail notification ! rowspan="2" {{verth\|va=middle\|Customizable interface}} ! rowspan="2" {{verth\|va=middle\|Customizable keybindings}} ! rowspan="2" {{verth\|va=middle\|Fragmented messages {{r\|group=Note\|FragmentedMessages}}}} ! rowspan="2" {{verth\|va=middle\|Database search with regular expressions support}} ! rowspan="2" \| Indexed search ! rowspan="2" \| Search folders {{r\|group=Note\|Searchfolders}} ! colspan="4" \| IMAP
{{verth\|va=middle\|ticker}} ! {{verth\|va=middle\|tray icon}} ! {{verth\|va=middle\|tooltip}} ! {{verth\|va=middle\|sound}} ! {{verth\|va=middle\|Search}} ! {{verth\|va=middle\|IDLE}}
{{rh}} \| Alpine \| mbox, mbx, MIX, maildir (with patches), MMDF, tenex, mtx, MH, mx, news, phile \| {{dunno}} \| {{yes}} \| {{partial}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}}
{{rh}} \| Becky! Internet Mail \| mbox \| {{dunno}} \| {{dunno}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}}
{{rh}} \| Canary Mail \| {{Proprietary}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}}
{{rh}} \| Citadel \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Claws Mail \| MH, mbox (plugin) \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{no}} \| {{yes}} \| {{no}}
{{rh2}} \| Courier \| Proprietary \| {{yes}} (weak) \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} (layout) \| {{no}} \| {{dunno}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes}}
{{rh}} \| Elm \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| eM Client \| Proprietary (sqlite) \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}}
{{rh}} \| EmailTray \| Proprietary \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Eudora \| modified mbox \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} {{Specify\|date=January 2007}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}}
{{rh}} \| Evolution \| maildir, mbox, MH \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{partial}} \| {{yes}} {{r\|group=Note\|Keybindings}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}}
{{rh}} \| Gnus \| babyl, maildir, mbox, MMDF, news, rnews, SOUP, outlook, oe-dbx \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} {{refn\|group=Note\|name=GnusNNIR\|Via `nnir` backends such as Notmuch{{cite web \|url=http://gnus.org/manual/gnus_108.html#nnir \|title=The Gnus Newsreader \|publisher=Free Software Foundation, Inc. \|year=2015 \|access-date=2016-11-21 \|first=Lars Magne \|last=Ingebrigtsen }}}} \| {{yes}} \| {{yes}} \| {{dunno}}
{{rh}} \| GroupWise \| Proprietary \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}}
{{rh}} \| Hiri \| Proprietary \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| IBM Notes \| Proprietary \| {{yes}}{{Cite web\|url=http://www.ibm.com/developerworks/lotus/library/ls-Notes_Encryption/#N10102\|title = Find product documentation and support\|website = IBM}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} {{r\|group=Note\|Lotus_frag}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}}
{{rh}} \| KMail \| mbox, maildir \| {{no}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}}
{{rh2}} \| Mailbird \| Proprietary \| {{no}} \| {{Yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{No}} \| {{yes}} \| {{Partial}} \| {{Yes}} \| {{Yes}} \| {{Yes}}
{{rh}} \| Mailpile \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Microsoft Entourage \| Proprietary (Personal Storage Table) \| {{dunno}} \| {{Yes}} \| {{Partial}} {{r\|group=Note\|eragebackups}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{Partial}} \| {{No}} \| {{No}} \| {{Partial}} {{r\|group=Note\|eragedbgrepsearch}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}}
{{rh}} \| Microsoft Office Outlook \| Proprietary (Personal Storage Table) \| {{Yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{Yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} {{r\|group=Note\|MSO}} \| {{yes}} \| {{dunno}} \| {{yes}}
{{rh2}} \| Mozilla Mail & Newsgroups \| mbox \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Mozilla Thunderbird \| mbox, maildir \| {{no}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} {{r\|group=Note\|TBThemes}} \| {{dunno}} \| {{no}} \| {{dunno}} \| {{yes}} (as of 3.0) \| {{yes}} \| {{yes}} \| {{yes}}
{{rh2}} \| Mulberry \| mbox {{r\|group=Note\|MulberryMBox}} \| {{partial}} {{r\|group=Note\|MulberryDB}} \| {{partial}} {{r\|group=Note\|MulberryDB}} \| {{partial}} {{r\|group=Note\|MulberryDB}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} {{Specify\|date=January 2007}} \| {{partial}} {{r\|group=Note\|MulberryDB}} \| {{no}} \| {{yes}} \| {{no}}
{{rh}} \| Mutt \| mbox, MMDF, MH, maildir \| {{yes}} (with compressed folders patch{{Cite web\|url=http://www.spinnaker.de/mutt/compressed/\|title=Compressed folders patch for Mutt}}) \| {{dunno}} (has limit command) \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} {{refn\|group=Note\|name=muttindexers\|Via Notmuch or other indexers.[https://notmuchmail.org/notmuch-mutt/ Using Notmuch with bare Mutt, the old fashioned way]{{Cite web \|url=http://dev.mutt.org/trac/wiki/UseCases/SearchingMail \|title=MuttWiki: UserCases/SearchingMail \|access-date=2013-02-13 \|archive-url=https://web.archive.org/web/20131210072700/http://dev.mutt.org/trac/wiki/UseCases/SearchingMail \|archive-date=2013-12-10 \|url-status=dead }}}} \| {{yes}} {{r\|group=Note\|muttindexers}} \| {{yes}} \| {{yes}}
{{rh2}} \| Netscape Messenger \| mbox \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Netscape Messenger 9 \| mbox \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| nmh / MH \| MH \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{dunno}}
{{rh}} \| Opera Mail \| mbox, MH, Proprietary \| {{no}} \| {{yes}} (all folders are virtual) \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}}
{{rh2}} \| Outlook Express \| Proprietary \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{yes}}
{{rh}} \| Pegasus Mail \| Proprietary (mbox-like) \| {{no}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{no}}{{cite web \|url=http://community.pmail.com/forums/post/17967.aspx \|title=Pegasus Mail & Mercury - Re: IDLE \|accessdate=2014-03-11 \|url-status=dead \|archiveurl=https://web.archive.org/web/20140311181717/http://community.pmail.com/forums/post/17967.aspx \|archivedate=2014-03-11 }}
{{rh2}} \| Pine \| mbox, mbx, MIX, maildir (with patches), MMDF, tenex, mtx, MH, mx, news, phile \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{no}}
{{rh2}} \| Pocomail \| mbox \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}}
{{rh}} \| RoundCube \| [IMAP Server] \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{Yes}} \| {{No}} \| {{No}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{Yes}} \| {{Yes}} \| {{dunno}}
{{rh}} \| i.Scribe / InScribe \| Proprietary (sqlite) \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}}
{{rh}} \| SeaMonkey Mail & Newsgroups \| mbox \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}}
{{rh}} \| SquirrelMail \| [IMAP Server] \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{Yes}} \| {{No}} \| {{No}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{Yes}} \| {{Yes}} \| {{dunno}}
{{rh}} \| Sylpheed \| MH \| {{no}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} {{r\|group=Note\|GrepMH}} \| {{no}} {{r\|group=Note\|GrepMH}} \| {{yes}} \| {{dunno}} \| {{no}}
{{rh}} \| The Bat! \| Proprietary \| style="background: #ddffdd;" \| Yes (AES 128 bit) (with Pro and Voyager version) {{r\|group=Note\|TBEncryptedDB}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} (PCRE 6.2) \| {{no}} \| {{yes}} \| {{yes}} \| {{yes}}
{{rh}} \| Trojitá \| IMAP \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}}
{{rh2}} \| Turnpike \| Proprietary \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Windows Live Mail \| File System (.eml) \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Windows Mail \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}}
{{rh}} \| YAM \| mbox, maildir, oe-dbx \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Zimbra \| File system \| {{No}} \| {{Yes}} \| {{Yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}}
class="sortbottom" ! rowspan="2" \| Client ! rowspan="2" \| Message file format ! rowspan="2" \| Encrypted database ! rowspan="2" \| Virtual folders ! rowspan="2" {{verth\|va=middle\|Scheduled backup}} ! colspan="4" \| New mail notification ! rowspan="2" {{verth\|va=middle\|Customizable interface}} ! rowspan="2" {{verth\|va=middle\|Customizable keybindings}} ! rowspan="2" {{verth\|va=middle\|Fragmented messages {{r\|group=Note\|FragmentedMessages}}}} ! rowspan="2" {{verth\|va=middle\|Database search with regular expressions support}} ! rowspan="2" \| Indexed search ! rowspan="2" \| Search folders {{r\|group=Note\|Searchfolders}} ! colspan="4" \| IMAP
{{verth\|va=middle\|ticker}} ! {{verth\|va=middle\|tray icon}} ! {{verth\|va=middle\|tooltip}} ! {{verth\|va=middle\|sound}} ! {{verth\|va=middle\|Search}} ! {{verth\|va=middle\|IDLE}}

rowspan="2" | Client

! rowspan="2" | Message file format

! rowspan="2" | Encrypted database

! rowspan="2" | Virtual folders

! rowspan="2" {{verth|va=middle|Scheduled backup}}

! colspan="4" | New mail notification

! rowspan="2" {{verth|va=middle|Customizable
interface}}

! rowspan="2" {{verth|va=middle|Customizable
keybindings}}

! rowspan="2" {{verth|va=middle|Fragmented messages
{{r|group=Note|FragmentedMessages}}}}

! rowspan="2" {{verth|va=middle|Database search
with regular expressions
support}}

! rowspan="2" | Indexed search

! rowspan="2" | Search folders {{r|group=Note|Searchfolders}}

! colspan="4" | IMAP

! {{verth|va=middle|tray icon}}

! {{verth|va=middle|tooltip}}

! {{verth|va=middle|sound}}

! {{verth|va=middle|Search}}

! {{verth|va=middle|IDLE}}

{{rh}} | Alpine

| mbox, mbx, MIX, maildir (with patches), MMDF, tenex, mtx, MH, mx, news, phile

| {{dunno}}

| {{yes}}

| {{partial}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | Becky! Internet Mail

| mbox

| {{dunno}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

{{rh}} | Canary Mail

| {{Proprietary}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh}} | Citadel

| {{dunno}}

{{rh}} | Claws Mail

| MH, mbox (plugin)

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

{{rh2}} | Courier

| Proprietary

| {{yes}} (weak)

| {{yes}}

| {{dunno}}

| {{yes}} (layout)

| {{no}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh}} | Elm

| {{dunno}}

{{rh}} | eM Client

| Proprietary (sqlite)

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh}} | EmailTray

| Proprietary

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh2}} | Eudora

| modified mbox

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{yes}} {{Specify|date=January 2007}}

| {{yes}}

| {{dunno}}

{{rh}} | Evolution

| maildir, mbox, MH

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{partial}}

| {{yes}} {{r|group=Note|Keybindings}}

| {{yes}}

{{rh}} | Gnus

| babyl, maildir, mbox, MMDF, news, rnews, SOUP, outlook, oe-dbx

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{yes}}
{{refn|group=Note|name=GnusNNIR|Via nnir backends such as Notmuch{{cite web

|url=http://gnus.org/manual/gnus_108.html#nnir

|title=The Gnus Newsreader

|publisher=Free Software Foundation, Inc.

|year=2015

|access-date=2016-11-21

|first=Lars Magne

|last=Ingebrigtsen

}}}}

| {{yes}}

| {{dunno}}

{{rh}} | GroupWise

| Proprietary

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

{{rh}} | Hiri

| Proprietary

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | IBM Notes

| Proprietary

| {{yes}}{{Cite web|url=http://www.ibm.com/developerworks/lotus/library/ls-Notes_Encryption/#N10102|title = Find product documentation and support|website = IBM}}

| {{yes}}

| {{yes}} {{r|group=Note|Lotus_frag}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

{{rh}} | KMail

| mbox, maildir

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

{{rh2}} | Mailbird

| Proprietary

| {{no}}

| {{Yes}}

| {{no}}

| {{yes}}

| {{No}}

| {{yes}}

| {{Partial}}

| {{Yes}}

{{rh}} | Mailpile

| {{dunno}}

{{rh2}} | Microsoft Entourage

| Proprietary (Personal Storage Table)

| {{dunno}}

| {{Yes}}

| {{Partial}} {{r|group=Note|eragebackups}}

| {{dunno}}

| {{Partial}}

| {{No}}

| {{Partial}} {{r|group=Note|eragedbgrepsearch}}

| {{Yes}}

| Proprietary (Personal Storage Table)

| {{Yes}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{Yes}}

| {{dunno}}

| {{yes}} {{r|group=Note|MSO}}

| {{yes}}

| {{dunno}}

| {{yes}}

| mbox

| {{dunno}}

{{rh}} | Mozilla Thunderbird

| mbox, maildir

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{yes}} {{r|group=Note|TBThemes}}

| {{dunno}}

| {{no}}

| {{dunno}}

| {{yes}} (as of 3.0)

| {{yes}}

{{rh2}} | Mulberry

| mbox {{r|group=Note|MulberryMBox}}

| {{partial}} {{r|group=Note|MulberryDB}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}} {{Specify|date=January 2007}}

| {{partial}} {{r|group=Note|MulberryDB}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | Mutt

| mbox, MMDF, MH, maildir

| {{yes}} (with compressed folders patch{{Cite web|url=http://www.spinnaker.de/mutt/compressed/|title=Compressed folders patch for Mutt}})

| {{dunno}} (has limit command)

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{yes}}
{{refn|group=Note|name=muttindexers|Via Notmuch or other indexers.[https://notmuchmail.org/notmuch-mutt/ Using Notmuch with bare Mutt, the old fashioned way]{{Cite web |url=http://dev.mutt.org/trac/wiki/UseCases/SearchingMail |title=MuttWiki: UserCases/SearchingMail |access-date=2013-02-13 |archive-url=https://web.archive.org/web/20131210072700/http://dev.mutt.org/trac/wiki/UseCases/SearchingMail |archive-date=2013-12-10 |url-status=dead }}}}

| {{yes}}
{{r|group=Note|muttindexers}}

| {{yes}}

{{rh2}} | Netscape Messenger

| mbox

| {{dunno}}

{{rh2}} | Netscape Messenger 9

| mbox

| {{dunno}}

{{rh}} | nmh / MH

| MH

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{dunno}}

{{rh}} | Opera Mail

| mbox, MH, Proprietary

| {{no}}

| {{yes}}
(all folders are virtual)

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

{{rh2}} | Outlook Express

| Proprietary

| {{no}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

| {{dunno}}

| {{yes}}

{{rh}} | Pegasus Mail

| Proprietary (mbox-like)

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}{{cite web |url=http://community.pmail.com/forums/post/17967.aspx |title=Pegasus Mail & Mercury - Re: IDLE |accessdate=2014-03-11 |url-status=dead |archiveurl=https://web.archive.org/web/20140311181717/http://community.pmail.com/forums/post/17967.aspx |archivedate=2014-03-11 }}

{{rh2}} | Pine

| mbox, mbx, MIX, maildir (with patches), MMDF, tenex, mtx, MH, mx, news, phile

| {{dunno}}

| {{no}}

{{rh2}} | Pocomail

| mbox

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh}} | RoundCube

| [IMAP Server]

| {{dunno}}

| {{Yes}}

| {{No}}

| {{Yes}}

| {{dunno}}

| {{Yes}}

| {{dunno}}

{{rh}} | i.Scribe / InScribe

| Proprietary (sqlite)

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh}} | SeaMonkey Mail & Newsgroups

| mbox

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

{{rh}} | SquirrelMail

| [IMAP Server]

| {{dunno}}

| {{Yes}}

| {{No}}

| {{Yes}}

| {{dunno}}

| {{Yes}}

| {{dunno}}

{{rh}} | Sylpheed

| MH

| {{no}}

| {{yes}}

| {{no}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{no}} {{r|group=Note|GrepMH}}

| {{yes}}

| {{dunno}}

| {{no}}

{{rh}} | The Bat!

| Proprietary

| style="background: #ddffdd;" | Yes (AES 128 bit)

(with Pro and Voyager version) {{r|group=Note|TBEncryptedDB}}

| {{yes}}

| {{no}}

| {{yes}}

(PCRE 6.2)

| {{no}}

| {{yes}}

{{rh}} | Trojitá

| IMAP

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

{{rh2}} | Turnpike

| Proprietary

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{dunno}}

{{rh2}} | Windows Live Mail

| File System (.eml)

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh2}} | Windows Mail

| {{dunno}}

| {{yes}}

| {{dunno}}

| {{yes}}

{{rh}} | YAM

| mbox, maildir, oe-dbx

| {{no}}

| {{dunno}}

| {{yes}}

| {{no}}

{{rh}} | Zimbra

| File system

| {{No}}

| {{Yes}}

| {{dunno}}

| {{Yes}}

class="sortbottom"

! rowspan="2" | Client

! rowspan="2" | Message file format

! rowspan="2" | Encrypted database

! rowspan="2" | Virtual folders

! rowspan="2" {{verth|va=middle|Scheduled backup}}

! colspan="4" | New mail notification

! rowspan="2" {{verth|va=middle|Customizable
interface}}

! rowspan="2" {{verth|va=middle|Customizable
keybindings}}

! rowspan="2" {{verth|va=middle|Fragmented messages
{{r|group=Note|FragmentedMessages}}}}

! rowspan="2" {{verth|va=middle|Database search
with regular expressions
support}}

! rowspan="2" | Indexed search

! rowspan="2" | Search folders {{r|group=Note|Searchfolders}}

! colspan="4" | IMAP

! {{verth|va=middle|tray icon}}

! {{verth|va=middle|tooltip}}

! {{verth|va=middle|sound}}

! {{verth|va=middle|Search}}

! {{verth|va=middle|IDLE}}

{{reflist|group=Note|refs=

Fragmented messages are called truncated document in Lotus Notes.

Mulberry is a dedicated IMAP client; If the IMAP server has these abilities, Mulberry can use them.

This is for Mulberry's 'offline browsing' capability, which is turned off by default. In the default configuration no local copy of the mail is created.

Search Folders are virtual folders that contain views of all email items matching specific search criteria. Search Folders display the results of previously defined search queries.

Editable keybindings is part of GNOME, provided "Editable menu accelerators" is enabled in GNOME's "Menus & Toolbars" control applet.

Fragmented messages make it possible, for example, to send a large audio message as several partial messages, and still have it appear to the recipient as a simple audio message rather than as an encapsulated message containing an audio message. {{IETF RFC|2046}}

Because MH stores each letter in a separate file, it is trivially easy to (externally) search them with grep. This ease is shattered when non-raw encodings are used, such as base64.

The Bat! Pro support two methods access to program when database is encrypted: password authorization and token authorization; Voyager support only password authorization and encrypted database is default and only available storage method.

Thunderbird's interface can be user customized via the use of themes (which can reposition and skin controls)

supported since Office 2007.

With Entourage 2008, you can use AppleScript and various internal/external scheduling mechanisms to create timed backups of Entourage Data.

With Entourage 2008 and later versions of 2004, you can use the Spotlight data to search what's in the Entourage database via regular expression in the file system in Terminal or via Spotlight's ...interesting...version of "regular expressions".

}}

=Templates, scripts and programming languages=

class="wikitable sortable sort-under sticky-header-multi"
rowspan="2" style="width:12em" \| Client ! colspan="6" \| Message templates ! rowspan="2" style="width:12em" \| Message templates individual for ! colspan="7" \| Support in message templates scripts, programming languages
new ! reply ! forward ! read confirmation ! save ! print ! JavaScript ! VBScript ! PHP Scripts ! Python ! Regular expressions ! Java ! Other (specify)
{{rh}} \| Alpine \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{any}} \| {{No}} \| {{No}} \| {{No}} \| {{No}} \| {{dunno}} \| {{No}} \| {{dunno}}
{{rh}} \| Becky! Internet Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{any}} account folder \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Canary Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \|*
{{rh}} \| Citadel \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Claws Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| account folder \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes\|Perl}}
{{rh2}} \| Courier \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| Elm \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| eM Client \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| account \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh2}} \| Eudora \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{any}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{no}}
{{rh}} \| Evolution \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Gnus \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{no}} \| {{yes\|elisp}}
{{rh}} \| GroupWise \| {{yes}} \| {{no}} \| {{no}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Hiri \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{yes}} \| {{yes}} \| {{any}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh}} \| i.Scribe / InScribe \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{any}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes\|Internal macros (similar to JavaScript)}}
{{rh}} \| IBM Notes \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}}{{Cite web\|url=http://publib.boulder.ibm.com/infocenter/domhelp/v8r0/index.jsp?topic=/com.ibm.help.domino80x.doc/DOC/H_CREATE_A_RECOGNIZER_OVER.html\|title = IBM Docs}} \| {{yes}} \| {{yes\|LotusScript, Formula language}}
{{rh}} \| KMail \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{no}} \| {{no}} \| {{CNone\|none}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Mailpile \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Microsoft Entourage \|{{yes}} \|{{yes}} \|{{yes}} \|{{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{Yes\|AppleScript, Automator}}
{{rh}} \| Microsoft Office Outlook \|{{yes}} \|{{yes}} \|{{yes}} \|{{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{no}} \| {{no}} \| {{dunno}} \| {{no}} \| {{dunno}} \| {{no}} \| {{dunno}}
{{rh2}} \| Mozilla Mail & Newsgroups \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Mozilla Thunderbird \|{{yes}} \| {{yes}}{{r\|group=Note\|TB_STATIONERY_EXT}} \| {{yes}}{{r\|group=Note\|TB_STATIONERY_EXT}} \| {{yes}} \| {{yes}} \| {{yes}} \| profile \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Mulberry \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Mutt \| {{yes}} \| {{yes}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{any}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes}} \| {{dunno}} \| {{yes\|Internal macros}}
{{rh2}} \| Netscape Messenger \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Netscape Messenger 9 \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| nmh / MH \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Opera Mail \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{n/a}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}}
{{rh2}} \| Outlook Express \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| Pegasus Mail \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Pine \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{any}} \| {{dunno}} \| {{No}} \| {{No}} \| {{dunno}} \| {{dunno}} \| {{No}} \| {{dunno}}
{{rh2}} \| Pocomail \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{yes\|PocoScript}}
{{rh}} \| RoundCube \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}}
{{rh}} \| SeaMonkey Mail & Newsgroups \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| SquirrelMail \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}}
{{rh}} \| Sylpheed \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}}
{{rh}} \| The Bat! \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| {{yes}} \| account folder address book group contact \| {{yes}} {{r\|group=Note\|BAT_js}} \| {{yes}} {{r\|group=Note\|BAT_XMP}} \| {{yes}} {{r\|group=Note\|BAT_XMP2}} \| {{yes}} {{r\|group=Note\|BAT_TBPyxie}} \| {{yes}} \| {{yes\|PCRE 6.2}} \| {{yes\|Internal and plugins macros}}
{{rh2}} \| Turnpike \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Windows Live Mail \| {{yes}}{{r\|group=Note\|STATIONERY}} \| {{yes}}{{r\|group=Note\|STATIONERY}} \| {{dunno}} \| {{yes}}{{r\|group=Note\|STATIONERY}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{yes}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh2}} \| Windows Mail \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}} \| {{dunno}}
{{rh}} \| YAM \| {{yes}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{yes}} \| {{yes}} \| {{dunno}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}} \| {{yes\|ARexx}}
{{rh}} \| Zimbra \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{Yes}} \| {{any}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{no}} \| {{dunno}} \| {{dunno}}
class="sortbottom" ! rowspan="2" style="width:12em" \| Client ! colspan="6" \| Message templates ! rowspan="2" style="width:12em" \| Message templates individual for ! colspan="7" \| Support in message templates scripts, programming languages
class="sortbottom" ! new ! reply ! forward ! read confirmation ! save ! print ! JavaScript ! VBScript ! PHP Scripts ! Python ! Regular expressions ! Java ! Other (specify)

class="wikitable sortable sort-under sticky-header-multi"

rowspan="2" style="width:12em" | Client

! colspan="6" | Message templates

! rowspan="2" style="width:12em" | Message templates individual for

! colspan="7" | Support in message templates scripts, programming languages

new

! reply

! forward

! read confirmation

! save

! print

! JavaScript

! VBScript

! PHP Scripts

! Python

! Regular expressions

! Java

! Other (specify)

{{rh}} | Alpine

| {{Yes}}

| {{dunno}}

| {{any}}

| {{No}}

| {{dunno}}

| {{No}}

| {{dunno}}

{{rh}} | Becky! Internet Mail

| {{yes}}

| {{any}}
account
folder

| {{dunno}}

{{rh}} | Canary Mail

| {{yes}}

| {{dunno}}

| {{no}}

|*

{{rh}} | Citadel

| {{dunno}}

{{rh}} | Claws Mail

| {{yes}}

| account
folder

| {{no}}

| {{yes}}

| {{dunno}}

| {{yes|Perl}}

{{rh2}} | Courier

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

| {{no}}

{{rh}} | Elm

| {{dunno}}

{{rh2}} | eM Client

| {{yes}}

| account

| {{no}}

{{rh2}} | Eudora

| {{yes}}

| {{any}}

| {{no}}

| {{yes}}

| {{no}}

{{rh}} | Evolution

| {{yes}}

| {{dunno}}

{{rh}} | Gnus

| {{yes}}

| {{dunno}}

| {{no}}

| {{yes}}

| {{no}}

| {{yes|elisp}}

{{rh}} | GroupWise

| {{yes}}

| {{no}}

| {{yes}}

| {{dunno}}

{{rh}} | Hiri

| {{yes}}

| {{no}}

| {{yes}}

| {{any}}

| {{no}}

{{rh}} | i.Scribe / InScribe

| {{yes}}

| {{no}}

| {{any}}

| {{no}}

| {{yes|Internal macros (similar to JavaScript)}}

{{rh}} | IBM Notes

| {{yes}}

| {{dunno}}

| {{yes}}

| {{no}}

| {{yes}}{{Cite web|url=http://publib.boulder.ibm.com/infocenter/domhelp/v8r0/index.jsp?topic=/com.ibm.help.domino80x.doc/DOC/H_CREATE_A_RECOGNIZER_OVER.html|title = IBM Docs}}

| {{yes}}

| {{yes|LotusScript, Formula language}}

{{rh}} | KMail

| {{yes}}

| {{no}}

| {{CNone|none}}

| {{dunno}}

| {{no}}

| {{dunno}}

{{rh}} | Mailpile

| {{dunno}}

{{rh2}} | Microsoft Entourage

|{{yes}}

| {{dunno}}

| {{Yes|AppleScript, Automator}}

|{{yes}}

| {{dunno}}

| {{no}}

| {{dunno}}

| {{no}}

| {{dunno}}

| {{no}}

| {{dunno}}