May 2025 - Mailman-users - lists.mailman3.org

configuring postfix local recipient table
by Alexander Inzinger-Zrock May 5, 2025

May 5, 2025

**System Key Data** OS: Debian 12 mailman: GNU Mailman 3.3.10 (Tom Sawyer) Python: Python 3.11.2 (main, Nov 30 2024, 21:22:50) [GCC 12.2.0] Method: Python Virtual Environment Installation Ahoi, i am trying to configure a mailman3 instance to replace a mailman2 installation (both on different hosts). The mm3 instance is actually not reachable (Incoming) but can send (Outgoing), as is the desired state to be (we intend to swap IPs during change of systems). A. Verify Incoming To verify that emails send to the MTA (postfix) get properly handled and handed over to the mm3-instance i tried to substitute incoming email by a) swaks utility [1] (fail) b) telnet utility [2] (fail) c) command ''mailman inject'' [3] (success) With c) i copied a former generate testmail-file to the mm3-host and injected it directly to my testlist (leaving out the MTA). With a) and b) i tried to hand over a testmail via CLI to the MTA (postfix) what resulted in the error: "Recipient address rejected: User unknown in local recipient table" B. /etc/postfix/main.cfg A search in mailman-users(a)mailman3.org archives [4] pointed me to the configuration of postfix as MTA [5], especially settings with the 'local_recipients_maps' parameter that should be set like [5]: local_recipient_maps = proxy:unix:passwd.byname $alias_maps hash:/path-to-mailman/var/data/postfix_lmtp what i did / already had done. C. aliasing, restarting services and test without , I then restarted postfix, rebuilt the postfix aliases (command ''newaliases'') and rebuilt the mailman aliases (command ''mailman aliases''), even tried with space-separation instead of coma-separation [6], testet again with same result. D. empty /opt/mailman/mm/var/data/postfix_lmtp and then i just found out that my postfix_lmpt file was empty (that i believe to be the the place from where the hastables take their input). Questions: 1. could somebody suggest a way, an entry should occur in postfix_lmtp? 2. What would be the appropriate order to manually generate aliases? first: postfix-command ''newaliases'' and second: mailman-command ''mailman aliases'' or reverse? 3. finding traces [7] of a file called postfix.cfg i can't find it (anymore) in the official installation instructions. Is that file (still?) necessary regarding: 3.1 parameter for default lookup table type 3.2 pointing to command ''postmap'' 4. to what user should the command ''postmap'' be available [8]? Any pointer to manuals or examples i may have missed or ideas on any of those 4 questions would be greatly appreciated. lg alexander Sources: [1] swaks utility https://jetmore.org/john/code/swaks/ [2] telnet utility https://de.wikipedia.org/wiki/Telnet [3] command ''mailman inject'' https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/commands/d… [4] search mailman-users(a)mailman3.org archives 'user unknown in local recipient table' https://lists.mailman3.org/archives/search?q=user+unknown+in+local+recipien… [5] docs mm3: 'Hooking up your mail server' https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/docs/mta.h… [6] docs postfix: local_recipient_maps https://www.postfix.org/postconf.5.html#local_recipient_maps [7] traces of postfix.cfg + https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/thread/… + https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/docs/NEWS.… [8] docs mm3: transport maps (regarding command ''postmap'') https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/docs/mta.h…

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acceptable_aliases not updating venv/data/postfix_lmtp
by Stefan Bauer May 5, 2025

May 5, 2025

Dear Users, I'm trying to use acceptable_aliases for a specific list; Setting is also active; # curl -s -q --user restadmin:..... http://localhost:8001/3.1/lists/postmaster@domain/config | jq { "acceptable_aliases": [ "abuse@domain" ], However venv/data/postfix_lmtp does not contain abuse@domain, so postfix rejects the mail. What am i doing wrong? Mailman 3.3.9 Thanks in advance Stefan

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Log Owner/Moderator actions ban address matching.
by Hitashi mancho May 1, 2025

May 1, 2025

Dear All, In Mailman 3, is there any way we can log the Owner/Moderator actions like moderator "x" approved the posting on list(a)example.com? Also, I have configured some local ban lists and some global ban lists as per my organization's policy. In my setup, I observed that when someone from the ban list posts to the list, that posting goes into a blackhole without leaving any trace. I may have made some configuration mistakes, but can we log the ban list matching or generate a notification if some postings match the ban list? Regards, Hitachi.

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Auto discard after max_days_to_hold not working.
by Hitashi mancho May 1, 2025

May 1, 2025

Dear all, I have migrated around 300 mailing lists from Mailman 2 to Mailman 3. In most of the mailing lists we have configured "max_days_to_hold" to 2. It was working fine in Mailman 2. However, it is not working in Mailman 3. Mailman version: GNU Mailman 3.3.10 (Tom Sawyer) Python 3.11.9 Rocky Linux 9.5 Crontab: @daily /opt/mailman/venv/bin/mailman digests --periodic 00 08 * * * /opt/mailman/venv/bin/mailman notify * * * * * /opt/mailman/venv/bin/mailman-web runjobs minutely 0,15,30,45 * * * * /opt/mailman/venv/bin/mailman-web runjobs quarter_hourly @hourly /opt/mailman/venv/bin/mailman-web runjobs hourly @daily /opt/mailman/venv/bin/mailman-web runjobs daily @weekly /opt/mailman/venv/bin/mailman-web runjobs weekly @monthly /opt/mailman/venv/bin/mailman-web runjobs monthly @yearly /opt/mailman/venv/bin/mailman-web runjobs yearly Please guide me in this regard. Regards, Hitachi.

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