PantoMIME is a generic, flexible, platform independent, unicode enabled C++ framework for parsing and constructing RFC822/2822 email messages, including - importantly - the recent MIME extensions (as specified by RFC2045-2049). It can, for example, be used for MIME backends by email clients.
Well, we've not made a real website for this project yet... In the meantime, for general information, check out the project site at SourceForge: http://sourceforge.net/projects/pantomime
Also, if you're a developer, you may want to check out the project's Source Comprehension Documentation at: http://pantomime.sourceforge.net/SCD
Mads Orbesen Troest & Morten Silcowitz