December 2024 - Mailman-users - lists.mailman3.org

Upgrade docker-mailman to v0.5.2
by Christopher April 21, 2025

April 21, 2025

Hi Abhilash, I checkout the v0.5.2 for testing my upgrade from 0.4.6 and noticed, that the docker-image-version is still set to 0.4 in docker-compose.yaml. Is there any reason for it or should it be set to 0.5? I´m still using my good old mariadb. I did not find any upgrade-informations about breaking-changes. Do you have any experience with migrating from 0.4.6 to 0.5.2 on mariadb? Best regards Chrclaus

1 1

makemigrations --merge error after Debian upgrade
by Chupin Maxime April 16, 2025

April 16, 2025

Hi, I upgraded my debian version, and since, it seems that I have a problem. I tried `mailman-web migrate` (and `mailman-web collectstatic` etc.) and I get the error message: ``` CommandError: Conflicting migrations detected; multiple leaf nodes in the migration graph: (0010_auto_20220618_2315, 0014_schedule_cluster in django_q; 0014_auto_20220618_2315, 0018_alter_emailtemplate_language in postorius). To fix them run 'python manage.py makemigrations --merge' ``` So I tried `mailman-web makemigrations --merge` that ended with ``` PermissionError: [Errno 13] Permission denied: '/usr/lib/python3/dist-packages/postorius/migrations/0019_merge_20240930_1159.py' ``` There is no such a file in the migration directory. Any idea ? Thanks in advance, All the best Maxime Chupin

7 28

Find a smtp server to send out emails
by Leon March 12, 2025

March 12, 2025

Hi, This problem is not caused by mailman, but I still want to give it a shot here. I'm hosting a mailing list on top of mailman3. Emails are supposed to be sent out by AWS ses. However, ses requires that sender address must be verified, which leads to a problem that emails sent by subscribers to mailing list cannot be sent to other subcirbers, since their addresses are not verified. And it is impossible to verified every subscriber. Are there smtp service providers allowing unverified email address to send out emails, or do I have other solutions? Thanks. -- Best wishes, Leon

4 3

Moderation of held emails vs. spam
by David Krantz March 11, 2025

March 11, 2025

Hi, I now run Mailman 3.3.1, installed from pip. Is there now any way to prevent Mailman from forwarding the contents of the held message when notifying moderators of held messages? In my case these messages often are spam messages and if the entire contents are forwarded it triggers spam handling in the recipient address(es) which over time risks classifying all moderation emails as spam or even classifying the list domain or server as a spam source. Even my own outgoing filter classifies it as spam, which I will fix. I currently run rspamd for spam filtering, graylisting and DKIM and ARC verification/signing. Someone on this recommended it, thank you for that as it removes the need for other milters. I guess that this would be a simple change to make as a kludge but a proper implementation as a setting would be a lot better. I'd like it as a global setting but that might be too coarse. Cheers // David

3 4

Issues with a DMARC record leading to message being shunted
by Ralf Hildebrandt March 4, 2025

March 4, 2025

Hi! Recently a mail was not being distributed via our MM3 instance; I searched the logs and found: Dec 22 04:54:27 2023 (24) ACCEPT: <1d431542-b386-467b-8bf2-305f19ee7eb4(a)somenet.org> Dec 22 04:54:28 2023 (28) Uncaught runner exception: list index out of range Dec 22 04:54:28 2023 (28) Traceback (most recent call last): File "/usr/lib/python3.10/site-packages/mailman/core/runner.py", line 179, in _one_iteration self._process_one_file(msg, msgdata) File "/usr/lib/python3.10/site-packages/mailman/core/runner.py", line 272, in _process_one_file keepqueued = self._dispose(mlist, msg, msgdata) File "/usr/lib/python3.10/site-packages/mailman/runners/pipeline.py", line 37, in _dispose process(mlist, msg, msgdata, pipeline) File "/usr/lib/python3.10/site-packages/mailman/core/pipelines.py", line 53, in process handler.process(mlist, msg, msgdata) File "/usr/lib/python3.10/site-packages/mailman/handlers/validate_authenticity.py", line 125, in process authenticate(msg, msgdata) File "/usr/lib/python3.10/site-packages/mailman/utilities/retry.py", line 44, in f_retry return f(*args, **kwargs) File "/usr/lib/python3.10/site-packages/mailman/handlers/validate_authenticity.py", line 93, in authenticate auth_result = authenticate_message( File "/usr/lib/python3.10/site-packages/authheaders/__init__.py", line 395, in authenticate_message dmarc_result = check_dmarc(msg, spf_result, dkim_result, dnsfunc=dnsfunc, psddmarc=psddmarc) File "/usr/lib/python3.10/site-packages/authheaders/__init__.py", line 343, in check_dmarc result, result_comment, from_domain, policy = dmarc_per_from(from_domain, spf_result, dkim_result, dnsfunc, psddmarc) File "/usr/lib/python3.10/site-packages/authheaders/__init__.py", line 90, in dmarc_per_from record, orgdomain = receiver_record(from_domain) File "/usr/lib/python3.10/site-packages/authheaders/dmarc_lookup.py", line 117, in receiver_record retval = lookup_receiver_record(hostSansDmarc, dnsfunc) File "/usr/lib/python3.10/site-packages/authheaders/dmarc_lookup.py", line 92, in lookup_receiver_record tags = answer_to_dict(str(result)) File "/usr/lib/python3.10/site-packages/authheaders/dmarc_lookup.py", line 42, in answer_to_dict retval = {t[0].strip().lower(): t[1].strip().lower() for t in rawTags} File "/usr/lib/python3.10/site-packages/authheaders/dmarc_lookup.py", line 42, in <dictcomp> retval = {t[0].strip().lower(): t[1].strip().lower() for t in rawTags} IndexError: list index out of range Dec 22 04:54:28 2023 (28) SHUNTING: 1703220868.1418982+b27f5db154375fcd2c418d467172e4aad0d3d57a So the message has been shunted, due to this error. Something with DMARC and tags. So I checked the DMARC record for the sending domain somenet.org. It is "v=DMARC1;p=none;pct=100;rua=mailto:postmaster@somenet.org;mailto:postmaster@somenet.org;ri=3600;fo=1;" which is syntactically incorrect. The extra ";mailto:postmaster@somenet.org" is wrong, I guess the tag "ruf=" is missing here! It should probably read "v=DMARC1;p=none;pct=100;rua=mailto:postmaster@somenet.org;ruf=mailto:postmaster@somenet.org;ri=3600;fo=1;" So, should mm3 somehow "catch" this error somehow? According to the DMARC specs, an syntactically incorrect DMARC record should be ignored / handled as if none were present. -- Ralf Hildebrandt Charité - Universitätsmedizin Berlin Geschäftsbereich IT | Abteilung Netz | Netzwerk-Administration Invalidenstraße 120/121 | D-10115 Berlin Tel. +49 30 450 570 155 ralf.hildebrandt(a)charite.de https://www.charite.de

5 12

Easy way to integrate captcha/reduce subscription spam?
by Johannes Rohr Feb. 25, 2025

Feb. 25, 2025

Dear all, my mailman3 instance is flooded with subscription spam, yet I haven't found any canonical method of integrating a captcha in to the subscription form. Is there really none at all? Perplexity.ai says I should install the python package django-simple-captcha but is unclear about the steps needed to actually make the captcha appear. Are there other ways? Is there any method that is robust and survives upgrades? Also, would there be a way of batch-deleting all those thousands of spam registrations that have accumulated (what they have in common is that their email is unconfirmed) Thanks in advance for any suggestion! Johannes

2 3

How To Install Mailman 3 on Debian 10 (Complete Guide)
by Brian Carpenter Feb. 25, 2025

Feb. 25, 2025

I have finished my how-to install Mailman 3 on Debian 10 completed to the point where you can use it to get a fully functional Mailman 3 environment up and running. This is a comprehensive guide that walks you through installing EVERYTHING (currently!) that Mailman 3 needs to run. It also makes updating Mailman 3/Postorius/Hyperkitty very easy. I have not added the update directions yet but will very soon. I also plan on adding a section on setting up DKIM and Xapian with Mailman 3. I hope this helps those who wish to get a Mailman 3 server up and running quickly and brings a sense of sanity to the confusion regarding the various documentation out there concerning the installation of Mailman 3/Postorius/Hyperkitty. I intend to add a How-to for Ubuntu 20 at some point. Without further ado: https://wiki.list.org/DOC/Howto_Install_Mailman3_On_Debian10 I am sure the above guide can use improvements. Feel free to contact me off-list to point out mistakes/improvements, etc. -- Brian Carpenter Harmonylists.com Emwd.com

13 38

Hyperkitty performance problem
by Tobias Diekershoff Feb. 20, 2025

Feb. 20, 2025

Hey all, last week we caught some AI bots causing high LOAD on our mailman3 servers archive, that we blocked with nginx rules. I'm not sure if it is related to this incident, but we noticed this when analyzing the log files at the time. In the mailman.log hyperkitty is listed 10k times and more to archive a single mail over the time of 2h, seemingly all with the same process ID > (1186) HyperKitty archived message [...] The mailman3-web.log has matching log entries that the mail was archived > hyperkitty.views.mailman Archived message every 0.5 seconds. In the web interface to the archive, the mail is only listed once though. My suspicion is, that these archiving processes are now overloading the system, preventing a timely catching up work of the queued messages. I could not find anything in the Mailman3 nor Hyperkitty documentation to better distribute the system resources to the Mailman runner or prevent Hyperkitty to restart archiving a mail over and over again. Any hint about where to look for the reason of this is highly appreciated. Best, Tobias -- Tobias Diekershoff >>> System Hacker Free Software Foundation Europe Schönhauser Allee 6/7, 10119 Berlin, Germany | t +49-30-27595290 Registered at Amtsgericht Hamburg, VR 17030 | fsfe.org/support OpenPGP-Key ID ... 0x25FE376FF17694A1 Fingerprint ...... 23EE F484 FDF8 291C BA09 A406 25FE 376F F176 94A1

6 16

How to remove Held Unsubscriptions
by Mark Jan. 6, 2025

Jan. 6, 2025

Hi As a moderator I receive an email each day for "Held Unsubscriptions" for a subscriber that was unsubscribed by the Owner sometime ago (using "Mass operations"). +++++++++++++++++++++++++++++++ The listname(a)domain.com list has 1 moderation requests waiting. Held Unsubscriptions: User: bart(a)example.com Please attend to this at your earliest convenience. +++++++++++++++++++++++++++++++ There is nothing showing under "Subscription requests > Pending approval". Could anyone tell me how I can stop these email notifications? I have access to the mailman shell and the databases. Thanks, Mark

4 7

mailman transfer from 2to3
by Daniel Germer Dec. 28, 2024

Dec. 28, 2024

Hello all, I am new to mailman3, once upon a time I had mailman installed on my server, but had trouble with many things, especially virtual hosts not possible in mailman2... However on https://docs.mailman3.org/en/latest/pre-installation-guide.html#what-do-i-n… are no system requirements for the installation. I assume, that I cannot just install mailman3 on a regular webhoster, but there is no section: You need to have root access to a Linux system with at least 8/16/31/64GB RAM and at least 1/2/5/7 GB of free diskspace (ssl or hard-disk?) You need so and so much for 100/1000 Lists with 10/100/1000 Users each and 5/50/500 Mailings per day... where do I find that information? what is the smallest possible machine to run mailman3 on? Can I run it on a raspberry pi? regards, Daniel

1 0