- Mailman-users - lists.mailman3.org

Cannot Create New List
by dap1＠bellsouth.net Nov. 11, 2025

Nov. 11, 2025

I'm trying to create a list (on Ubuntu) and I'm getting this: <venv> $ python3 Python 3.12.3 (main, Aug 14 2025, 17:47:21) [GCC 13.3.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> owners = ['xxxx(a)ddddddddd.net'] >>> from mailman.app.lifecycle import create_list >>> ant = create_list('llllllllllllll(a)dddddddd.net', owners) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/opt/mailman/venv/lib/python3.12/site-packages/mailman/app/lifecycle.py", line 74, in create _list getUtility(IEmailValidator).validate(fqdn_listname) ^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/mailman/venv/lib/python3.12/site-packages/zope/component/_api.py", line 180, in getUtil ity raise ComponentLookupError(interface, name) zope.interface.interfaces.ComponentLookupError: (<InterfaceClass mailman.interfaces.address.IEmailVa lidator>, '')

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Xapian alternatives
by Andrew Bernard Nov. 11, 2025

Nov. 11, 2025

Are there alternative search engines to Xapian that can be used for Mailman 3? I have come to understand that Xapian development stalled in the v2.0 attempt.

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custom css?
by jamie＠mayfirst.org Nov. 9, 2025

Nov. 9, 2025

I've installed the mailman3, mailman3-full, mailman3-web, and python3-django-mailman3 packages on Debian trixie. Everything is working - thank you developers! However, I would like to modify how the web pages look (both postorius and hyperkitty). I noticed that the web interface on this server (lists.mailman3.org) looks much nicer than the one showing on my server. For one, on my installed instance, the left and right margins are not set, so content is flush with the edge of the screen. What is the easiest/most maintainable way to add my own css code and/or files to adjust how the web interface is displayed? Is that possible? Thank you! jamie

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Cannot issue commands through email
by stonehold＠thedagora.social Nov. 9, 2025

Nov. 9, 2025

Greetings! I've recently deployed mailman3 for my community but have run into a snag -- none of the emails that issue commands (eg., list1-<join>@domain.com, list2-<unsubscribe>@domain.com, etc. etc.) are going through. They keep bouncing back with an undeliverable message. I can create lists and interact with them otherwise just fine. When I join from the web UI I can post and receive to that list. I've been able to troubleshoot the rest so far on my own, but this has me stymied, so any guidance would be greatly appreciated. Thanks in advance! ~Ken

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Block members from sending cc's and bcc's
by Cathryn McGuire Nov. 7, 2025

Nov. 7, 2025

Hi everyone, Using Mailman 3 with Affinity web interface and we want to stop our members from sending to cc: or bcc: We've found the Header Filter and cc and bcc appear in it. Tried to configure it to "hold for moderation," but it hasn't worked. Partly because we don't understand what to put in the Pattern input box. I put in cc: because it requires something. Can anyone advise? Cheers, Cathryn

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mailman-web Cleaning Up a Few Issues
by dap1＠bellsouth.net Nov. 6, 2025

Nov. 6, 2025

I seems to be having a problem with some cronjobs not running; I'm getting the following email errors/warnings: Subject: Cron <www-data@dap002> [ -f /usr/bin/django-admin ] && flock -n /var/run/mailman3-web/cron.minutely /usr/share/mailman3-web/manage.py runjobs minutely Body: flock: cannot open lock file /var/run/mailman3-web/cron.minutely: No such file or directory Obviously there is a path specified wrong but I can't find where that is. Subject: Cron <mailman@dap002> /opt/mailman/venv/bin/mailman-web runjobs minutely Body: System check identified some issues: WARNINGS: ?: settings.ACCOUNT_AUTHENTICATION_METHOD is deprecated, use: settings.ACCOUNT_LOGIN_METHODS = {'username', 'email'} ?: settings.ACCOUNT_EMAIL_REQUIRED is deprecated, use: settings.ACCOUNT_SIGNUP_FIELDS = ['email*', 'username*', 'password1*', 'password2*'] Again I could probably fix these if I knew where to look.

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FW: lists.arun@gmail.com's bounce score incremented on Degrowcali
by Christian Stalberg Nov. 6, 2025

Nov. 6, 2025

Whenever I post to this list I get quite a few of these bounce score messages. How can I obtain a list of actual unsubcribes based on bounce scores to remaining subscribers please? What can I do to stop this behavior please? -----Original Message----- From: noreply(a)lists.ccalternatives.org <noreply(a)lists.ccalternatives.org> Sent: Thursday, November 6, 2025 5:30 AM To: degrowcali-owner(a)lists.ccalternatives.org Subject: lists.arun(a)gmail.com's bounce score incremented on Degrowcali lists.arun(a)gmail.com's bounce score on degrowcali(a)lists.ccalternatives.org has been incremented. The triggering DSN if available is attached.

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update problems in virtualenv
by Christian H. Kuhn Nov. 6, 2025

Nov. 6, 2025

Hi all, i followed https://docs.mailman3.org/en/latest/install/virtualenv.html and ran in different problems. Here's the first. All mailman-web runjobs report: System check identified some issues: WARNINGS: ?: settings.ACCOUNT_AUTHENTICATION_METHOD is deprecated, use: settings.ACCOUNT_LOGIN_METHODS = {'username', 'email'} ?: settings.ACCOUNT_EMAIL_REQUIRED is deprecated, use: settings.ACCOUNT_SIGNUP_FIELDS = ['email*', 'username*', 'password1*', 'password2*'] I get those eMails every minute which is a bit annoying. (venv) mailman@bywater:~/mm/var/data$ python -m pip --version pip 25.3 from /opt/mailman/venv/lib/python3.13/site-packages/pip (python 3.13) (venv) mailman@bywater:~/mm/var/data$ python --version Python 3.13.3 (venv) mailman@bywater:~/mm/var/data$ python -m pip --version pip 25.3 from /opt/mailman/venv/lib/python3.13/site-packages/pip (python 3.13) (venv) mailman@bywater:~/mm/var/data$ pip list --outdated Package Version Latest Type ------- ------- ------ ----- mailman 3.3.9 3.3.10 wheel (venv) mailman@bywater:~/mm/var/data$ pip install --upgrade mailman==3.3.10 Collecting mailman==3.3.10 Using cached mailman-3.3.10-py3-none-any.whl.metadata (2.4 kB) Requirement already satisfied: aiosmtpd>=1.4.3 in /opt/mailman/venv/lib/python3.13/site-packages (from mailman==3.3.10) (1.4.6) Requirement already satisfied: alembic!=1.7.0,>=1.6.2 in /opt/mailman/venv/lib/python3.13/site-packages (from mailman==3.3.10) (1.17.1) Requirement already satisfied: atpublic in /opt/mailman/venv/lib/python3.13/site-packages (from mailman==3.3.10) (6.0.2) Requirement already satisfied: authheaders>=0.16 in /opt/mailman/venv/lib/python3.13/site-packages (from mailman==3.3.10) (0.16.3) Requirement already satisfied: authres>=1.0.1 in /opt/mailman/venv/lib/python3.13/site-packages (from mailman==3.3.10) (1.2.0) Requirement already satisfied: click>=8.0.0 in /opt/mailman/venv/lib/python3.13/site-packages (from mailman==3.3.10) (8.3.0) Requirement already satisfied: dnspython>=1.14.0 in /opt/mailman/venv/lib/python3.13/site-packages (from mailman==3.3.10) (2.8.0) Requirement already satisfied: falcon>=3.1.3 in /opt/mailman/venv/lib/python3.13/site-packages (from mailman==3.3.10) (4.1.0) Requirement already satisfied: flufl.bounce>=4.0 in /opt/mailman/venv/lib/python3.13/site-packages (from mailman==3.3.10) (4.0) Requirement already satisfied: flufl.i18n>=3.2 in /opt/mailman/venv/lib/python3.13/site-packages (from mailman==3.3.10) (5.2.0) Requirement already satisfied: flufl.lock>=5.1 in /opt/mailman/venv/lib/python3.13/site-packages (from mailman==3.3.10) (8.2.0) Requirement already satisfied: gunicorn in /opt/mailman/venv/lib/python3.13/site-packages (from mailman==3.3.10) (23.0.0) Requirement already satisfied: lazr.config in /opt/mailman/venv/lib/python3.13/site-packages (from mailman==3.3.10) (3.1) INFO: pip is looking at multiple versions of mailman to determine which version is compatible with other requirements. This could take a while. ERROR: Could not find a version that satisfies the requirement nntplib; python_version >= "3.13" (from mailman) (from versions: none) ERROR: No matching distribution found for nntplib; python_version >= "3.13" standard-nntplib 3.13.0 is installed. How can i get rid of those mails? TIA QNo

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Internal server error instead of web interface
by Christian H. Kuhn Nov. 5, 2025

Nov. 5, 2025

Hi all, https://lists.qno.de/mailman3 shows an internal server error. I followed https://docs.mailman3.org/en/latest/install/virtualenv.html with MariaDB instead of PostgreSQL. Python 3.13.0 pip 25.3 mailman 3.3.11b mailman-web 0.0.10.dev14?g0997bd postorius 1.3.13 Services mailman3, mailmanweb, apache2, uwsgi up and running. uwsgi listens on [::1]:8000, apache2 is configured accordingly. Ports show up in netstat. No errors show in logs. If /mailman3 was a directory, i would have thought of user permission problems. But not with TCP ports. As :8000 is available, i would have thought that there is a problem with uwsgi. Requests arrive there and are processed: [pid: 3185672|app: 0|req: 10/17] ::1 () {28 vars in 409 bytes} [Mon Nov 3 13:24:05 2025] GET /mailman3/ => generated 5038 bytes in 28 msecs (HTTP/1.0 200) 8 headers in 261 bytes (1 switches on core 0) So uwsgi gets the request and delivers data. The problem seems that apache2 does not get the result, and i cannot find any reason. Any help? TIA QNo

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mailqueue shows bounces for emails that are not on the mailing list
by Paul Nov. 5, 2025

Nov. 5, 2025

Iam getting alot of such from my mail server mail queue lately4d08rT4xMHzMCD6S 2393 Mon Nov 3 01:43:21 list-bounces+makeupbymichelle=aol.com(a)lists.mydomain(host mx-aol.mail.gm0.yahoodns.net[67.195.228.84] said: 421 4.7.0 [TSS04] Messages from my-mail-server-IP temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes (in reply to MAIL FROM command))makeupbymichelle(a)aol.com 4d0GJJ3TLhzMCDHH 2378 Mon Nov 3 05:49:20 list2-bounces+lolaann09=yahoo.com(a)lists.mydomain(host mta5.am0.yahoodns.net[67.195.228.94] said: 421 4.7.0 [TSS04] Messages from my-mail-server-IP temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes (in reply to MAIL FROM command))lolaann09(a)yahoo.comThis is becoming problematic because am currently being blocked on Yahoo domains. My setup is as follows: I host mailman3 list server which uses our mail server as a relay.The spam emails i.e makeupbymichelle(a)aol.com and lolaann09(a)yahoo.com are neither members nor non members of the lists which are generating the bounces.I have also confirmed that none of the list members are forwarding to any of those spam addresses.What am I missing?Thank you.

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