I would like to see support for sieve scripts in claws mail, no matter if built in or as plugin.
Things that would be needed:
* for account preferences when set protocol to 'IMAP4': enable sieve support, server address and port, authentication
* in 'tools' or 'configuration' for accounts that have enabled sieve support: create, enable, disable and edit sieve script
I think that using the libsieve (http://sodabrew.com/libsieve/) should help a lot building this support
Now that the managesieve plugin has been merge...
I suppose we can close this.
Thanks a lot, Charles Lehner!