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Sylpheed zen.jpg
Sylpheed 2.2.7 used together with Xfce Mailwatch plugin
Developer(s) Hiroyuki Yamamoto
Initial release 0.1.0alpha (January 1, 2000; 17 years ago (2000-01-01))
Stable release
3.6.0 (June 29, 2017; 9 days ago (2017-06-29)) [±]
Preview release
3.6beta1 (June 12, 2017; 26 days ago (2017-06-12)) [±]
Written in C, GTK+
Operating system BSD, Linux, macOS, Unix, Windows
Available in English; Japanese
Type E-mail client, news client
License GPL/LGPL

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+.[1]

In 2005, Sylpheed was forked to create Sylpheed-Claws, now known as Claws Mail.[2] As of 2015, both projects continue to be developed independently.

Sylpheed is the default mail client in Lubuntu, Damn Small Linux and some flavours of Puppy Linux.[3]


Spam filtering[edit]

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.[4]


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.[5]


Sylpheed is unable to send HTML mail. This is intentional, since the developers consider HTML mail to be harmful.[4] It is still possible to receive HTML mail using Sylpheed.

See also[edit]


External links[edit]