Patrick Nagel wrote:
I think the best place to filter messages would be in the mail server - with sieve. There is a squirrelmail plugin called Avelsieve [1] for that. A
Thunderbird-like filter building dialogue for RoundCube that can load and save sieve rules to the server via the ManageSieve protocol would be extremely cool.
There are already two managesieve plugins for Roundcube (svn-trunk version required):
http://trac.roundcube.net/wiki/Plugin_Repository