@ishouldhavebeenaqatester
I think I have this solved!
After reading more on postfix, the logs were showing local delivery, so I changed
virtual_transport = lmtp:127.0.0.1:2003
to
mailbox_transport = lmtp:127.0.0.1:2003
So you my ask next: Why not use:
mailbox_transport = lmtp:unix:/var/spool/kopano/dagent.sock
?
Note: I also had to change /etc/kopano/dagent.cfg to also run on 127.0.0.1:2003
When postfix runs chrooted, it won’t have access to the socket that runs non-chrooted, so 127.0.0.1:2003 is a safer bet.
I hope this can help someone.