Mark P. McCahill Marcos A. Rodriguez Post Office Protocol University of Minnesota Eudora (email client) Cleancode eMail MH Message Handling System Simple Mail Access Protocol Mailx Mutt (email client) Mozilla Mail & Newsgroups Push-IMAP EmailTray Unicode and email Local Mail Transfer Protocol Bloomba Cc:Mail Zimbra Windows Messaging Mahogany (email client) Spike (application) JSON Meta Application Protocol Trojitá Gnus Windows Live Mail Minnesota Internet Users Essential Tool Foxmail IBM Lotus iNotes Columbia MM Claris Emailer Pine (email client) Text-based email client Netscape Mail & Newsgroups UUCP DR-WebSpyder Email client Scribe Mail Fetchmail Heirloom P…

Project Classilla Hiri (email client) Sylpheed Turnpike (software) Outlook Express Mail (Windows) YAM (software) Citadel/UX Outlook for Windows Cyberdog Balsa (email client) Modest (email client) Getmail Roundcube Elm (email client) Mailbox (application) Fdm (software) Microsoft Mail OfflineIMAP Simple Mail Transfer Protocol Internet Message Access Protocol GNU IceCat BlitzMail GyazMail Pocomail Mailbird Mailpile Arachne (web browser) Alpine (email client) Courier (email client) Mulberry (email client) Opera Mail Microsoft Outlook (mobile app) Claws Mail Microsoft Entourage Pegasus Mail Forté Agent Mailody Becky! Email GNUMail SquirrelM

ail IMail Geary (e-mail client) Internet Messaging Program Mozilla Application Suite K-9 Mail The Bat! GNOME Evolution GroupWise Vivaldi (web browser) Kontact Beonex Communicator Mailsite Microsoft Outlook Apple Mail Mozilla Thunderbird Sparrow (email client) HCL Notes SeaMonkey Comparison of email clients List of filename extensions (S–Z)