May 2026 - Mailman-users - lists.mailman3.org

Missing bits of French translation
by iMark May 13, 2026

May 13, 2026

Hi, I have a list set with "French" as its preferred language. The default emails such as the Confimation and Welcome get sent French. My browser (Chrome) has its default language set as French, and my PC's region and language are set as French. When I view the list's "Info" Postorius page I see some parts translated ... 1. Menu and button words are translated okay. eg: ENGLISH: Sign In FRENCH: S'identifier 2. Page heading words are translated okay. eg: ENGLISH: Subscription / Unsubscription FRENCH: Abonnement / désabonnement 3. Page text fails. eg. ENGLISH: You have to sign in to visit the archives of this list. FRENCH: Is in English. Looking at the .po file ... /opt/mailman/venv/lib/python3.11/site-packages/mailman/messages/fr/LC_MESSAGES/mailman.po "PO-Revision-Date: 2024-06-25 17:09+0000\n" None of the msgid strings for the 3 examples appear in the mailman.po file. So, as some strings are translated and others not (yet none appear in the mailman.po file), I'm thinking that either there is another translation file somewhere for Postorius that needs updating, or the missing msgid s were not included in the original .pot file. Am I on the right track?

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How to debug bounces?
by Stephen Daniel May 7, 2026

May 7, 2026

Colleagues -- I run a small mailman3 server with perhaps 10 lists. All the lists are small. Over the past two days about a third of the users in my most active list have been disabled by bounces. I assume the problem is with my setup, not with all of those users. How do I debug this? Can I see the text of any of the bounce messages to understand why the emails bounced? This issue might stem from my running somewhat old software. Currently running mailman 3.3.5. Thanks! -- Stephen Daniel

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How to build docs and how to contribute documentation
by mailman26＠xse.com May 6, 2026

May 6, 2026

I have mailman 3 working with sendmail (FreeBSD system) and when I was setting this up I found the "Sendmail" section of the docs to be somewhat thin: https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/docs/mta.h… It points to two different versions of the mailertable hack: https://gist.github.com/Maeglin73/72eb5b1e4ee66a383c2aa454726be9a5 https://gitlab.com/mailman/mailman/-/work_items/307#note_632495542 I got a version of this to work but was not satisfied because it required hacking either mailman or sendmail config to cleanup the domain in the recipient address. Eventually I realized that "mailman inject" could be use in very similar way to how mailman 2 lists work with sendmail (alias pipe to a command). This provides a path to submit messages without using LMTP. First, how does one build the mailman 3 documentation? I am mildly experienced with sphinx so the actual changes are not an issue. But I was only able to build mailman-suite-doc documentation; it wasn't obvious to me now to build docs for mailman core (let alone an of the other pages I find on docs.mailman3.org) Next, how are code and documentation contributions submitted for consideration? I'm a lot more familiar with github than gitlab and know how to fork but it didn't look like I would be able to submit a pull request. Craig

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captcha for subscription and account registration forms
by Johannes Rohr May 2, 2026

May 2, 2026

Dear all, in mailman installed in venv is there really no canonical way of integrating a captcha into postorius' subscription and account registration forms? We are increasingly getting hammered by spambots, and a captcha would seem like a simple and effective solution. Thanks for any suggestions! Johannes

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An introduction to Dynamic Sublists (Conversations) - GSoC 2026
by Archie Singh May 1, 2026

May 1, 2026

Hello everyone I am Archie Singh, a Computer Science Engineering student from the Indian Institute of Technology (IIT), Jodhpur. I am elated to announce that I have been selected as a contributor for Google Summer of Code 2026. I will be implementing Dynamic Sublists into the Mailman 3 Suite this summer. Mailing lists are essential for broadcasting, but high-traffic lists frequently fill up inboxes with replies to specific topics users might not be interested in. This project transforms this rigid broadcast model into an opt-in thread model. The goal is to ensure only the root email of a new topic is broadcast to the main mailing list. If the topic diverges into a specific task or discussion, subsequent replies will route strictly to a child list, delivering mail only to users who have explicitly opted in via email commands. I would love to hear your thoughts. Would an opt-in thread model be useful for specific topics? How do you folks handle email overloads? I will be updating more on: Blog <https://hashnode.com/@archiesingh> Thank you Regards Archie Singh

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Introducing my GSoC 2026 project: Domain Administration in Postorius
by Khushal A May 1, 2026

May 1, 2026

Hi everyone, I'm Khushal, a final year Computer Science student from R V College of Engineering, India. I've been selected for Google Summer of Code 2026 with GNU Mailman project. I'll be working on Domain Administration in Postorius. Right now, Mailman has roles like site admins and list owners, but domain level management is still limited. The idea of this project is to make the domain owner role actually usable. A domain owner should be able to create lists in their domain, manage those lists with the same permissions as a list owner, and edit domain level settings for their domain. For example, if multiple domains are hosted on the same Mailman instance, each domain can be managed independently by its own owner without needing full admin access. Would love to hear how you currently manage domains and if there are any pain points. I’ll be sharing updates here: https://hashnode.com/@a-khushal Thanks, Khushal (a-khushal)

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