On Wed, 5 Jan 2022, Ken Wright wrote: > Jan 5 22:09:30 grace dovecot: auth: Debug: client passdb out: > FAIL#0111#011user=me at mydomain.com Just a wild ass guess, but does your password backend expect "me", or "me at mydomain.com" (which is what it was given). Joseph Tam <jtam.home at gmail.com>