Mark, thank you for your reply.
Yes, the hostname variable for the list is correct. The posting emails from the list are delivered correctly.
I now think this is due to a spam email which was sent to mailman@mydomain.com (it's stuck in my mail queue) which is somehow erroneously being processed by mailman and routed to this particular list's owners, but with a bad sender address.
Does this seem plausible?
I see a "mailman" list in /etc/aliases and ../mailman/lists, but there isn't a "mailman" list in my web config. I did dump the configuration for the "mailman" list via config_list and hostname is set correctly.
-----Original Message----- From: Mailman-Users [mailto:mailman-users- bounces+nwyman=viablecomputing.com@python.org] On Behalf Of Mark Sapiro Sent: Wednesday, November 01, 2017 10:34 AM To: mailman-users@python.org Subject: Re: [Mailman-Users] New list's SMTP failures
On 11/01/2017 07:41 AM, Nick Wyman wrote:
On a server which hosts several mailman lists, a new list is exhibiting odd
behavior for owner email addresses. There are two owners, and both are receiving post emails, but are also bouncing what I assume are administrative emails.
The smtp-failure log looks like:
Nov 01 09:37:09 2017 (1387) delivery to <scrubbed> failed with code 553:
5.1.8 <scrubbed>... Domain of sender address mailman-bounces@com does not exist
If it actually says "mailman-bounces@com", go to the list's web admin UI and look at the setting for host_name near the bottom of the General Options page. It will be "com". Set it to the actual correct email domain name for this list.
Note that the sender address is incorrect (default value?). Regular posting emails are delivered with the correct sender address (foo- bounces@domain.com).
Using config_list to inspect the non-working list against a working list produces only the expected differences.
It doesn't show a difference in the host_name setting?
-- Mark Sapiro mark@msapiro.net The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
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