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

Caching problem with templates
by Mark June 26, 2025

June 26, 2025

Caching problem with templates. GNU Mailman 3.3.10 Python 3.11.2 Postorius Version 1.3.13 Venv installation per docs Hi All, A footer template is created and initially it works as expected. Editing the footer template sees the new content written to the database, In addition to viewing the edited content in the database, the new template can also be viewed in Lynx on localhost at: http://localhost:8000/mailman3/api/templates/list/<IDENTIFIER>/list:member:regular:footer The problem is that the original template is being cached somewhere and the old footer persists in new emails. In trying to get the edited footer to show in the emails I've restarted mailman3/mailmanweb, rebooted the server - but no joy. Any advice on how to flush the cache or hammer this gremlin greatly appreciated. Thanks, Mark

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redirecting -bounces replies
by Hirayama, Pat June 26, 2025

June 26, 2025

Greetings, Is it possible to redirect the -bounces alias of a specific list so that it also goes to a person, in addition to the normal bounces processing for that list? In Mailman2, I know that I could do that by modifying the aliases table. I've been poking around in Mailman3, but haven't managed to figure out which container I need to be looking at. And rather than keep spinning, I figured that I'd ask the hive mind, since I'm sure one of you can quickly point me to the correct location. Thanks! -p Pat Hirayama Pronouns: he/him/his Systems Engineer IT | Systems Engineering - Infrastructure Fred Hutch Cancer Center O 206.667.4856 phirayam(a)fredhutch.org<mailto:phirayam@fredhutch.org>

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Change the default value for the General Archive Policy
by Markus Grandpré June 26, 2025

June 26, 2025

Dear list, currently, when I create a new mailing list with MM3 the value for "Archive policy" is always set to "Public archives". I'd like to change the default value for "Archive policy" to "Do not archive this list". How can I do this? In Debian 12 I find in </usr/lib/python3/dist-packages/postorius/forms/list_forms.py>: mlist_properties = ['archivers'] archive_policy_choices = ( ('public', _('Public archives')), ('private', _('Private archives')), ('never', _('Do not archive this list')), ) archive_rendering_mode_choices = ( ('text', _('Plain text')), ('markdown', _('Markdown text')), ) archive_policy = forms.ChoiceField( choices=archive_policy_choices, widget=forms.RadioSelect, label=_('Archive policy'), help_text=_('Policy for archiving messages for this list'), ) but have no idea how to change the settings here. Your help is very appreciated. Best regards, Markus Grandpré -- Markus Grandpré Universität Konstanz Kommunikations-, Informations- und Medienzentrum (KIM) Abteilung IT-Dienste Forschung, Lehre und Infrastruktur Sachgebiet Diensteadministration Tel: ++49 7531 88 4342

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Block members from sending cc's and bcc's
by Cathryn McGuire June 23, 2025

June 23, 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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Creating users via RestAPI / User-Management - a bunch of questions
by Christian Schneider June 23, 2025

June 23, 2025

Dear Mark and companions, somehow I can not cope with the user management... (I am running a venv-installation, latest stable versions) I read this manual: https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/rest/docs/… and played with the RestAPI calls... I know about the fine grained differences between user and member, admin/owner, superuser... and about the two user databases in PostgreSQL and Django-Framework. What I stumble upon is the RestAPI calls to create a "working" user (with the ability to login via WebUI). When I follow the manual (from the url above) I create a user (including password) that appears in the PostgreSQL database. (And this user is visible on the User-URL (https://example.com/mailman3/users)) Even when I (via WebUI) set the user as "approved" this user is not able to log in... I assume this restriction is in accordance to the fact that there is not equivalent Django user. (There was a mail in the archive of the MM3 user group...stating that one has to use the Django RestAPI to create the appropriate user) When I create the user using the WebUI (https://example.com/accounts/signup/?next=/mailman3/lists/) the new user is created in the right (complete) way...appearing in the PostgreSQL database and as a user in Django. How is this sync between the two databases realized? (The Django user also has the correct status (no staff status / no superuser status / just active status) how is this realized?) As I am not very familiar with python programming (I know Perl/Java/C++ and have an (maybe outdated) concept of OOP), is there a quick way to implement this kind of sync by copying the register logic from mailman's python action script for registering? Other questions: Will there be a create_admin_user-script that is callable via CLI (like createsuperuser or create_list)? (This script ought create a user in PostgreSQL and as Django user) How will a social account provider (like oidc) linkage (in Django) fit in this concept? Will oidc-accounts be copied to the Django's user database (or PostgreSQL db) or is it an on-the-fly check against the oidc-provider? (I assume second option) What are the status-flags (staff status/superuser status/active status) of the linked oidc-accounts? (Can I specify the status flags?) A conceptual thought: When "user1" (with email user1(a)example.com) is known to django via oidc linkage and I create "user1" (also with email user1(a)example.com) via RestAPI calls (following the url https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/rest/docs/…) do I have a "complete" user then? I mean a user who is able to login and who can be assigned to a list as admin (e.g.) (In this case I would not have to care about the Django user database... ;-)) Thank you for some clarifying hints... :-) Chris

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two signatures on sent mail?
by STR June 20, 2025

June 20, 2025

Hi, I am a very non-savvy mailman list user. I am trying to set up a list via cPanel but when I send emails there are two signatures. One is my usual signature and the other, below, is appended by Mailman and includes an http link to a non-existent page on my website. How do I strip the auto signature, just leaving my own? I use Mailman via cPanel on two separate hosting accounts. One works fine and this new one attaches the list address. I can't see what I did differently with the first! any help gratefully received Kate

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footer template priority
by Sam Darwin June 20, 2025

June 20, 2025

It seems templates can be configured in the filesystem or via postorius. When I place a footer template in the filesystem it worked fine. Then without adjusting any configuration, without removing that, I tried to use the postorius control panel to add a footer template, which ends up in the database, both the core and web databases. But emails stop getting sent out. Emails were posted into Hyperkitty, but not mailed out via postfix. Whatever system logs I have access to, I have checked. There are no apparent errors anyplace. Perhaps I didn't look in the right places. The problematic email arrives, is posted to Hyperkitty, but isn't emailed out to subscribers. As if the template broke something. I remove the template from the postorius UI. Those queued emails are instantly sent! The template said "test content". No variables. I checked on the server for "queued emails" and did not find those either, in postfix or mailman. Mysterious. The phenomenon is repeatable on this server. Add a footer template, emails stop.

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Django-allauth compatibility (ACCOUNT_AUTHENTICATION_METHOD and ACCOUNT_EMAIL_REQUIRED)
by Jan Eden June 17, 2025

June 17, 2025

Hi, after installing Mailman 3 in a new virtual environment, I ran into the compatibility issues with django-allauth discussed by Andreas Vetter and Mark Sapira on this list in February[1] and in March[2] – WARNINGS: settings.ACCOUNT_AUTHENTICATION_METHOD is deprecated, use: settings.ACCOUNT_LOGIN_METHODS = {'email', 'username'} settings.ACCOUNT_EMAIL_REQUIRED is deprecated, use: settings.ACCOUNT_SIGNUP_FIELDS = ['email*', 'username*', 'password1*', 'password2*'] – and solved them with the additions to /etc/mailman3/settings.py suggested by Mark: del ACCOUNT_AUTHENTICATION_METHOD ACCOUNT_LOGIN_METHODS = {'email', 'username'} del ACCOUNT_EMAIL_REQUIRED ACCOUNT_SIGNUP_FIELDS = ['email*', 'username*', 'password1*', 'password2*'] In the second list thread, Mark linked to the current (patched) version of mailman-web's mailman.py[3], which addresses the deprecation of ACCOUNT_AUTHENTICATION_METHOD, but not of ACCOUNT_EMAIL_REQUIRED. Is there any reason why the patch fixes only one of the two issues? - Jan [1] https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/thread/… [2] https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/thread/… [3] https://gitlab.com/mailman/mailman-web/-/blob/c8b9aef1704b75b1cb6d0c925855a…

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Trouble Installing Mailman3
by Henry Hartley June 13, 2025

June 13, 2025

I'm having problems installing mailman3 following the instructions on https://docs.mailman3.org/en/latest/install/virtualenv.html Everything goes well until I get to the Installing Mailman Core<https://docs.mailman3.org/en/latest/install/virtualenv.html#installing-mail…> step, which has me do the following in my venv environment: (venv)$ pip install wheel mailman psycopg2-binary Ubuntu 24.04.02 LTS Python 3.12.3 pip version 24.0 First, I was getting problems because my company firewall was blocking outbound traffic. I got that taken care of. Next, I was seeing certificate errors, saying there was a self-signed certificate: WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1000)'))': /simple/wheel/ Could not fetch URL https://pypi.org/simple/wheel/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/wheel/ (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1000)'))) - skipping When I added --trusted-host pypi.org that error went away but I'm still unable to install anything: (venv) mailman@wz-prd-tpmd-1:~$ pip -v --trusted-host pypi.org install wheel mailman psycopg2-binary Using pip 24.0 from /opt/mailman/venv/lib/python3.12/site-packages/pip (python 3.12) ERROR: Could not find a version that satisfies the requirement wheel (from versions: none) ERROR: No matching distribution found for wheel The same error shows up if I try to install just mailman or psycopg2-binary, except the word "wheel" is replace with whichever package I've requested. I've rerun the apt install of python3-dev and python3-venv to make sure those are present and up to date. Any help you can provide will be greatly appreciated. -- Henry Hartley Westat

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mail loops back to myself
by Florian Sukup June 13, 2025

June 13, 2025

Hi, I've spent hours on finding the error but no success. I hope you can help: I am running Debian with older version of mailman3 (3.3.3) and postfix (3.5). Postfix on its own is working fine. I set up mailman, created a site/domain (lists.yyy.com) My hostname is host.xxx.com . My IP has a RDNS entry: reverse.rrr.com . When I send an email to my mailing list mylist(a)lists.yyy.com I receive an error email. The logfile says the following: ... Jun 9 00:23:38 arvak postfix/smtpd[]: connect from host.xxx.com[m.y.i.p] Jun 9 00:23:38 arvak postfix/relay/smtp[]: warning: host reverse.rrr.com[178.251.71.190]:25 greeted me with my own hostname host.xxx.com Jun 9 00:23:38 arvak postfix/relay/smtp[]: warning: host reverse.rrr.com[m.y.i.p]:25 replied to HELO/EHLO with my own hostname host.xxx.com Jun 9 00:23:38 arvak postfix/relay/smtp[]: 094895FADB: to=<mylist(a)lists.yyy.com>, relay=reverse.rrr.com[m.y.i.p]:25, delay=0.06, delays=0.03/0.01/0.02/0, dsn=5.4.6, status=bounced (mail for lists.yyy.com loops back to myself) Jun 9 00:23:38 arvak postfix/smtpd[114119]: disconnect from host.xxx.com[m.y.i.p] ehlo=1 quit=1 commands=2 ... The MX record of lists.yyy.com points to reverse.rrr.com. Not sure if this is the best idea? Can anyone give me a hint where to search for this error? Thanks a lot in advance! Florian.

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Full-text searching: why Haystack instead of PostgreSQL?
by admin＠bclug.ca June 10, 2025

June 10, 2025

I've been asked to give a presentation on a recent migration from MMv2 to MMv3 and one of the items in my notes is the question about why Haystack is used for full-text searching instead of PostgreSQL? Can someone shed some light on that decision? Thanks

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"to" Headers for Non-Anonymous lists
by Dan Caballero June 10, 2025

June 10, 2025

Hello, At the request of a list owner, we changed the settings on a list to "Anonymous = No" so that list members could see who a message was coming from. It seems a side effect of the setting is that users are now using "reply-to" and some messages are going out to the list addressed in the manner below. "Last Name, First Name via list-name <list-name(a)caltech.edu>" The list owner feels this is confusing and some members may inadvertently email the list when they intend to email the individual. I understand this is likely a client side caching issue since most email clients create an index of contacts based on previously received emails. Aside from reverting back to "Anonymous = Yes", is there any setting we can change at the list level to force the "to" field to persist as the list email address? Thanks in advance for your help. ---- Dan Caballero Systems Administrator Academic Computing Solutions IMSS - Caltech https://imss.caltech.edu

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Stalwart plugin
by info＠joergschulz.de June 10, 2025

June 10, 2025

Hi all, I'm just reviewing Stalwart as a many-in-one mailing system. Did anybody yet succeed in plugging mailman into stalwart (the incoming bit seems to be difficult)?

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"this held message has been lost"
by Ethan Furman June 10, 2025

June 10, 2025

I have now seen this message on two different occasions. Any ideas on what is happening? Happy to provide additional information if I am told what is needed (and how to get it -- I'm a web moderator for the list without access to the machine it runs on). :) -- ~Ethan~

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FW: You have been invited to join the ssan@lists.ccalternatives.org mailing list.
by Christian June 9, 2025

June 9, 2025

Thank you. When I as an admin invite someone to join a list through the web interface, this is the email the invitee receives. Note that it doesn't even have the Description from List Settings > List Identity. What's going on here? -----Original Message----- From: ssan-confirm+40d4507f7198e14bfd6ad89565461f782e099d60(a)lists.ccalternatives.o rg <ssan-confirm+40d4507f7198e14bfd6ad89565461f782e099d60(a)lists.ccalternatives. org> Sent: Friday, June 6, 2025 4:48 AM To: jack(a)safecomputing.org Subject: You have been invited to join the ssan(a)lists.ccalternatives.org mailing list. Your address "jack(a)safecomputing.org" has been invited to join the ssan mailing list at lists.ccalternatives.org by the ssan mailing list owner. You may accept the invitation by simply replying to this message. Or you should include the following line -- and only the following line -- in a message to ssan-request(a)lists.ccalternatives.org: confirm 40d4507f7198e14bfd6ad89565461f782e099d60 Note that simply sending a `reply' to this message should work from most mail readers. If you want to decline this invitation, please simply disregard this message. If you have any questions, please send them to ssan-owner(a)lists.ccalternatives.org.

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Join a Mailman 3 list?
by Cathryn McGuire June 9, 2025

June 9, 2025

Hi, We’re currently hosted by EMWD who upgraded the Mailman 2 cPanel/Python and have been unable to resolve the issues we’re experiencing. We would like to join a Mailman 3 list to see how it all looks and works. Do you have any recommendation? Best, Cathryn McGuire

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Threads by month dropdown
by Sam Darwin June 7, 2025

June 7, 2025

Hi, After running hyperkitty_import to import thousands of emails from mailman2 (the years 2013-2025) I then ran another import for years 2004-2013 from another mbox file. It was an entirely earlier timeframe, which may be relevant. After the first import, the "Threads by month" dropdown showed 2013-2025. After the second import, the "Threads by month" dropdown showed 2013-2025. That is, 2004-2013 are missing. I have tried various things, including the mailman3-web cron maintenance tasks, waiting a day, and rebooting the server to clear memory. All messages were imported, and can be seen in "All threads". The messages are there. The only problem is the "Threads by month" dropdown. Beyond the dropdown, everything seems fine. Could it be a bug? Should I open an issue? Or, what should I try next? Is there a "refresh all threads by month" specific task? Deleting all archives and importing the older messages first... that worked correctly. It is a large destructive actions though, should that count as the official solution? Detour: While debugging it seemed to be an interesting question whether the mailman3-web periodic cron tasks had been running, and if those tasks affected the hyperkitty import. Referring to "Cron Jobs for Mailman Web" https://docs.mailman3.org/en/latest/install/virtualenv.html#cron-jobs-for-m… Those instructions are not dumping stdout/stderr to a log file, nor rotating the log files. What is your opinion if I sent a pull request that adds "Method 2 - Advanced", and include logging for the crons. Or maybe I am missing something. Is the output of the cron tasks getting logged in your environment?

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What is the best practice creating lists triggered by a another / second system?
by Christian Schneider June 6, 2025

June 6, 2025

Dear MM-Users, after reading a lot in the projects documentation of mailman3 I am not sure how to set up a "connection" between another system/server (running a self-service portal for our users) and the mailman3 server (venv-installation) for creating lists (giving a list owner's email address and a customized list style, given by name). On our old mailman-2.1 instance I used an ssh-tunnel and triggered the newlist-command with appropriate parameters. This seems a little bit outdated to me - nowadays... ;-) So I read about the rest api of mailman3 and thought, I might give it a go... On the other hand the rest api should not be exposed externally (localhost-only) as said here: https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/thread/… Running an nginx reverse proxy (and a firewall for the complete subnet) I am able to give dedicated access to the api but nevertheless I have no good feeling going this way... So my question is: What would be the best way to trigger creation of lists using a second system? Thank you for any suggestions! Chris

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Recently active discussions - Hyperkitty
by Sam Darwin June 5, 2025

June 5, 2025

Hi, Sometimes not sure if it's preferable to open a gitlab issue, or chat on the mailing list. I have run a large archive import into mailman3/hyperkitty. After that's done, waited a day, for scheduled cron jobs to complete. In "All Threads", all the email archives are present. The import worked. In "RECENTLY ACTIVE DISCUSSIONS" on the main page, it says: RECENTLY ACTIVE DISCUSSIONS No discussions this month (yet). Nothing there. That means if I direct users to visit the site, the page, it appears empty. That's too bad. :-) It should display recent emails. What would affect this feature during an archive import? Is it a problem with the import script itself, or with a scheduled cron job, or something else? Would you expect "Recently active discussions" be empty when very recent archives do exist? Thanks, Sam

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