Sailmail

SailMail is radio based e-mail system designed for boat owners operating beyond line-of-sight radio links to the internet. Much of its underlying technology is built upon the Winlink software originally developed by amateur radio enthusiasts.{{cite web

|url=http://www.sailmail.com/smprimer.htm#Overview%20of%20the%20Network

|title=SailMail Primer: Overview of the Network

|publisher=SailMail Association

|accessdate=19 Aug 2011

}}

Operation on SailMail network frequencies requires a PACTOR modem and an SSB radio.{{cite book|title=Cruising World|url=https://books.google.com/books?id=eR0PbPGNz8QC&pg=PA60|date=July 2003|pages=60–|issn=0098-3519}}{{cite book|author=H. Ward Silver|title=Two-Way Radios and Scanners For Dummies|url=https://books.google.com/books?id=gtC3JYnYgdAC&pg=PA132|date=1 March 2011|publisher=John Wiley & Sons|isbn=978-1-118-05460-4|pages=132–}} Sailmail operators do not need to hold an amateur radio license, as is the case for the similar Airmail product.{{cite book|title=Cruising World|url=https://books.google.com/books?id=Zae5ySwm60oC&pg=PA56|date=November 2003|pages=56–|issn=0098-3519}}{{cite book|author1=Earl R. Hinz|author2=Jim Howard|title=Landfalls of Paradise: Cruising Guide to the Pacific Islands|url=https://books.google.com/books?id=CjIg5FgUUW8C&pg=PA54|year=2006|publisher=University of Hawaii Press|isbn=978-0-8248-3037-3|pages=54–}} As of December 2023 the annual membership cost was US $275.{{Cite web |date=2023-12-05 |title=Sailmail Membership |url=https://sailmail.square.site/ |access-date=2023-12-05 |website=sailmail.square.site |language=en}}