# ----- Main settings -----
acl_smtp_rcpt = accept
-local_interfaces = <; 127.0.0.1.PORT_D ; [127.0.0.1]:PORT_D2 ; HOSTIPV4
+local_interfaces = <; 127.0.0.1.PORT_D ; [127.0.0.1]:PORT_D2 ; HOSTIPV4 ; 127.0.0.1.PORT_D4
log_selector = +incoming_interface+incoming_port
queue_only
queue_run_in_order