Rob Passalacqua writes:
I've looked on the forums and haven't found someone with the exact same issue as me. It appears that my mailman 3 server is either only sending to the first3 recipients on the list or only sending out mail to users that are members in Django because only 3 recipients are getting the emails.
How many people are on each of the lists which exhibit this problem? Have you checked for unsubscriptions or disabled subscriptions? Are you sure all subscribed addresses have been validated by the subscribers? How do you know only 3 recipients are getting the emails, did someone complain they're not getting them? Is it the same person every time? Is it the poster themself? If so, is that person's email service provided by Google? (Google discards mail sent by the recipient in favor of the copy in the sent folder.) Is it a person who is also an explicit addressee, or are they on multiple lists and only receiving one copy? If so, is that person's email provided by an Exchange server? (Exchange automatically deduplicates delivered email.)
Here is my /var/log/mailman3/smtp.log: Sep 01 08:00:04 2023 (1405) <169357680279.2857929.16011221517221650936@lists.mydomain.com> smtp to graduates@lists.mydomain.com for 4 recips, completed in 0.028921127319335938 seconds
This shows delivery to FOUR recipients? Which of the log messages are relevant to your report? There are only three or four patterns there, you could have edited down to make it comprehensible.
Steve