I have a postfix mail gateway. At the same time, every other host is set to use this gateway as the relay.
We have some automated outgoing emails sent from some hosts. I believe the gateway trys to send a deferred status back to the system started this. But that system is a null client, which sends but not receive any email
Is there anyway to stop sending the deferred status?
e.g. postfix/smtp: 2F6A155C256: to=, relay=none, delay=260862, delays=260862/0.01/0/0, dsn=4.4.1, status=deferred (connect to orange.mydom.com[192.168.1.5]:25: Connection refused)