Claws Mail

Claws Mail
Claws Mail
Claws-mail 271-en.png
Main window of Claws Mail 2.7.1
Developer(s) The Claws Mail Team
Initial release 0.4.67claws1 (11 May 2001)
Stable release 3.7.10  (August 27, 2011; 2 months ago (2011-08-27)) [+/−]
Preview release Daily CVS Snapshots [+/−]
Written in C, GTK+
Operating system BSD, Linux, Mac OS, Maemo, Solaris, Unix, Windows
Available in Brazilian Portuguese, Bulgarian, Catalan, Simplified Chinese, Traditional Chinese, Croatian, Czech, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Russian, Serbian, Slovak, Spanish, Swedish
Type E-mail client, news client
License GPLv3

Claws Mail is a free, GTK+-based, open source email and news client. It offers easy configuration and an abundance of features. It stores mail in the MH mailbox format and also the Mbox mailbox format via a plugin. Claws Mail runs on both Windows and Unix-like systems such as Linux, BSD, Solaris, and Mac OS X.



Formerly known as Sylpheed-Claws, it started in April 2001 as the development version of Sylpheed, where new features could be tested and debugged, but evolved enough to now be a completely separate program. It forked completely from Sylpheed in August 2005.


Claws Mail provides many features[1], among them are:

  • Search and filtering
  • Security (GPG, SSL, anti-phishing)
  • Import/export from standard formats
  • External editor
  • Templates
  • Foldable quotes
  • Per-folder preferences
  • Face, X-Face support
  • Customisable toolbars
  • Themes support
  • Plugins


Claws Mail's features can be extended with plugins[2], such as

  • Anti-spam (SpamAssassin, Bogofilter)
  • RSS aggregator
  • HTML viewers (Dillo, Gtkhtml2, Fancy (WebKit))
  • Trayicon
  • Laptop mail LED handler
  • Handler for the Mbox mailbox format
  • Various notification plugins
  • Perl filtering
  • Python scripting
  • Calendaring
  • TNEF parser
  • Archiving

See also


  1. ^ Features pages on
  2. ^ Plugins page on

External links

Wikimedia Foundation. 2010.

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