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.
* A crash bug was fixed.
* Content-Transfer-Encoding header with comments was supported.
* UTF-8 locale strings with suffix '.utf8' were supported.
* The 8KB restriction of template body size was removed.
Internet and communication
Windows, Linux, Mac
Product page: here