1 dovecot_lmtp_local_system: 2 debug_print = "R: dovecot_lmtp_local_system for $local_part@$domain" 3 driver = accept 4 domains = +local_domains 5 check_local_user 6 local_part_prefix = local+ 7 local_parts = ! root 8 transport = dovecot_lmtp 9 cannot_route_message = Unknown user