On Thu, 2015-09-10 at 11:01 -0700, Mike wrote: > < !include auth-system.conf.ext This helped. I enabled pam for passdb and now my GSSAPI auth works, but I don't understand why. I also had to enable "allow_all_users=yes" otherwise the messages weren't delivered. I'm going to have to take this to the Dovecot list to get an explanation. Thanks to you and Alice for the help! -- Kanwar R.S. Sandhu