Re: falsely log "auth: unknown user" when multiple userdb

When there is a multiple userdb to look for user, Dovecot log «auth: unknown user» when the first userdb search failed. Then Dovecot successfully search user in the second userdb and things works. But "auth: unknown user" event left in a logs.

On systemd using rsyslog i added this to rsyslog config:

if $programname == "dovecot" and $msg contains "- trying the next userdb" then stop