Hi Viktor, Thanks for getting back to me.
I've attached our master.cf file to this message. The only edits I have made is to replace references to my company's IP addresses and domain names. tomhudson_masterconfig.txt <http://postfix.1071664.n5.nabble.com/file/n91265/tomhudson_masterconfig.txt> Below is an example error message I am seeing in our postfix mail logs. Before this message was sent, we enabled TCP dumps for the domain's two MX records which I will also attach. As you should be able to see, one file has data in (this is the lowest value MX record) and one file is empty (the 2nd MX record which is never attempted. dump.pcap <http://postfix.1071664.n5.nabble.com/file/n91265/dump.pcap> dump2.pcap <http://postfix.1071664.n5.nabble.com/file/n91265/dump2.pcap> [12/07/2017 17:20] Jul 12 17:18:21 mes-l2-rly-01 postfix/error[21315]: 2412B80170667: to=<caitlin.campb...@redacted.org.uk>, relay=none, delay=92009, delays=92009/0/0/0, dsn=4.3.0, status=deferred (unknown mail transport error) Let me know if you need anything else. -- View this message in context: http://postfix.1071664.n5.nabble.com/Postfix-3-2-0-Sending-to-all-MX-records-tp91255p91265.html Sent from the Postfix Users mailing list archive at Nabble.com.
