Email client

An email client (or MUA as in mail user agent) is a computer program that is used to read and send email.

Here is a list of some widely used email clients, in alphabetical order by operating system.

Mac OS:

• Eudora
• Gnus (GPL)
• Netscape Messenger
• Microsoft Outlook and its cut-down version, Outlook Express
• Microsoft Entourage
• Mail (Provided with Mac OS X)
• Pine
• Thunderbird (formerly Minotaur), the stand-alone client derived from the Mozilla browser suite

Microsoft Windows:

• The Bat
• Eudora
• Gnus (GPL)
• Novell's Groupwise
• Incredimail
• M2, the client in the Opera web browser
• Netscape Messenger
• Microsoft's Outlook and its cut-down version, Outlook Express
• Pegasus Mail
• Pine
• Blueprint PMMail
• Thunderbird (formerly Minotaur), the stand-alone client derived from the Mozilla browser suite

Unix/Linux:

• Elm
• Elmo (GPL)
• Ximian Evolution (GPL)
• Gnus (GPL)
• Kmail (GPL)
• Mutt (GPL)
• M2, the client in the Opera web browser (as of Opera 7.21 also available for Linux)
• Netscape Messenger
• Pine
• Sylpheed (GPL)
• Thunderbird (formerly Minotaur), the stand-alone client derived from the Mozilla browser suite

Palm OS:

• Eudora
• Palm VersaMail (Included with the Tungsten series of handhelds and the Zire 71 handheld)

Pocket PC:

• Pocket Outlook