For those of us using offlineimap, it would be a big improvement and way easier if we could use Courier's Outbox feature. This feature causes Courier to automatically send any email showing up in an Outbox folder. That means if I use offlineimap, my next sync will both fetch my new mail and send anything I wrote while offline. From what I can tell, enabling this feature requires setting OUTBOX and SENDMAIL.
On the user end, this can be done with a copy to the folder at the moment. I've just asked that mutt include a patch to use this for sending messages so things work even more nicely (bug #373199).
this would just change the config file. I don't think this belongs to an ebuild, you can just change option in imapd file.
We switched to dovecot recently, is it still an issue? I'm not sure if that is supported by dovecot at all.
