NANOG list errors

Fellow list members,

The last several days, I’ve been receiving mail forwarding loop errors for the list. I’ll receive them several hours after sending a message. I’ll paste the latest two of them below, separated by % symbols.

Anyone able to sort this out and fix?


This is the mail system at host

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                  The mail system

<>: mail forwarding loop for
Reporting-MTA: dns;
X-Postfix-Queue-ID: 2B72F160040
X-Postfix-Sender: rfc822;
Arrival-Date: Wed, 18 Jul 2018 03:41:57 +0000 (UTC)

Final-Recipient: rfc822;
Original-Recipient: rfc822;
Action: failed
Status: 5.4.6
Diagnostic-Code: X-Postfix; mail forwarding loop for

Protip: mail forwarding loops almost always require seeing all the Received:
headers to correctly diagnose..

I had one of these show up earlier. I'm willing to send to offline to
somebody who can act on it.

I got a whole bunch overnight as well.

Andy (and others), if you forward a few full bounces to me I can take a look and see what might be going on.