I tried to set this up beside my existing mailcow server. Mailcow runs smooth and has a web interface. And I am not on my way to ditch it just for jmap.
Idk, what’s happening earlier:
1.dovecot integrates jmap (I would stay with mailcow) 2. More clients support jmap (eventually switch to stalwart) 3. Stalwart get an webinterface (eventually switch to stalwart)