Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA). Sylpheed runs on Unix-like systems such as Linux, BSD, and Mac OS X. It also supports Windows. Sylpheed uses GTK+ GUI toolkit. The newest version of Sylpheed works with GTK+ 2.4 or later (2.6 or later is recommended). Sylpheed is a free software distributed under the GNU GPL (the library part is GNU LGPL). You can freely use, modify and redistribute it under the license.
Sylpheed has the following features:
* Simple, beautiful, and well-polished user interface
* Comfortable operationality which is built in detail
* Well-organized, easy-to-understand configuration
* Lightweight operation
* High reliability
* Internationalization and Multilingualization support
* High-level Japanese processing
* Various protocols support
* Security features (GnuPG, SSL/TLSv1)
* Powerful filtering and search
* Junk mail control
* Flexible cooperation with external commands
What's new:
* The file copy and move were optimized.
* The crash on the cancellation of POP3/SMTP session was fixed.
* The crash when a person was removed and its e-mail addresses were referenced by a group in another folder was fixed.
* The Japanese manual was updated.
* Win32: If the initial loading of "MS Gothic" font failed, multi-byte font name is used now (workaround for JIS2004 MS Gothic font).
* Win32: The crash when fetching messages more than 64KB from IMAP4 server via FreeCap (a SOCKS wrapper) was fixed.
* Win32: Cairo library was updated.
Download: Sylpheed 2.4.0 RC
Screenshot: >> Click here <<
Link: Sylpheed Home Page