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
Change log:
* Reply and forward marks are appended after messages are actually sent.
* The feature to reply to attached message/rfc822 messages was added.
* When a folder is renamed, the path of junk folder is also updated.
* A workaround for the error which occurs with Gmail SMTP server was made.
* Win32: The bug that the name entry of creating or renaming an address book didn"t accept key input was fixed.
* Win32: The bug that the renaming of folders didn"t modify filter actions in some cases was fixed.