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Sylpheed 2.2.7 used together with Xfce Mailwatch plugin
Developer(s) Hiroyuki Yamamoto
Initial release 0.1.0alpha (January 1, 2000 (2000-01-01))
Stable release 3.4.3 (July 6, 2015 (2015-07-06))
Preview release 3.5beta3 (July 6, 2015 (2015-07-06))
Written in C, GTK+
Operating system BSD, Linux, Mac OS, Unix, Windows
Available in English; Japanese
Type E-mail client, news client
License GPL/LGPL
Website //

Sylpheed is an open source e-mail client and news client licensed under the GPL. It provides easy configuration and an abundance of features. It stores mail in the MH Message Handling System. Sylpheed runs on Unix-like systems such as Linux or BSD, and Windows. It uses GTK+.

In 2005, Sylpheed was forked to create Sylpheed-Claws, now known as Claws Mail.[1] As of 2015, both projects continue to be developed independently.

Sylpheed is the default mail client in Lubuntu, Damn Small Linux and Puppy Linux.[2]


  • Features 1
    • Spam filtering 1.1
    • Plug-ins 1.2
    • Limitations 1.3
  • See also 2
  • References 3
  • External links 4


Spam filtering

Sylpheed provides support for spam filtering using either bogofilter or bsfilter, at the user's choice. Bsfilter is shipped with the Windows version of Sylpheed.[3]


Sylpheed supports the development of plug-ins. As of February 2015, Sylpheed's website notes an attachment-tool plug-in, an automatic mail forwarding plug-in, and a plug-in for determining whether or not attachments are password-protected.[4]


Sylpheed is unable to send HTML mail. This is intentional, due to the developers finding HTML mail to be harmful.[3] It is still possible to receive HTML mail using Sylpheed.

See also


  1. ^ "Sylpheed-Claws 1.0.0 unleashed!!", 18 January 2005.
  2. ^ "", Retrieved 19 April 2015
  3. ^ a b "Chapter 1. Sylpheed FAQ - General Information"
  4. ^ "Sylpheed Plug-ins"

External links

  • Official website
  • Sylpheed documentation project
  • SourceForge project page

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