On 10/14/24 12:42, Greg Newby via Mailman-users wrote:
Here are the corresponding logfile entries from mailmanweb.log: smtplib.SMTPRecipientsRefused: {'redacted@gmail.com': (504, b'5.5.2 <mail>: Helo command rejected: need fully-qualified hostname')}
and from mail.log: Oct 14 12:06:26 domain postfix/smtpd[722764]: NOQUEUE: reject: RCPT from localhost[127.0.0.1]: 504 5.5.2 <mail>: Helo command rejected: need fully-qualified hostname; from=<root@lists.domain.tld> to=<root@localhost> proto=ESMTP helo=<mail>
lists.domain.tld is the domain for Mailman3. I don't know why it's trying to send email from root@.
I think the mail.log entry is for the DSN for the failure. The issue is the HELO/EHLO command. Try the following in your venv
(venv) ...:~$ python
Python 3...
Type "help", "copyright", "credits" or "license" for more information.
>>> import socket
>>> socket.getfqdn()
If that returns localhost, that's the issue. I think you can fix it by
putting a fully qualified domain name in /etc/hostname.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan