October 2022 - Mailman-users - lists.mailman3.org

Performance issues with Mailman 3
by Wong, Wesley 08 Oct '22

08 Oct '22

Hi, I am having some performance problems with Mailman 3 (version 3.3.5) when it sends out a lot of messages to people. We recently migrated from our old Mailman 2.1.x system to Mailman 3.x about 3 months ago. We host about 350 lists with membership counts varying between 10 to 1500 members on some of the lists. I noticed that outbound messages from Mailman to our outbound SMTP are getting delayed up to an hour when Mailman is processing a lot of messages going to lists. I was wondering if there are good performance tuning tips to be considered for Mailman 3 (i.e. OS, database and/os Mailman Core). I am running the setup on a VM. Here is my configuration for VM and OS: VM config: ESX 6.7 (CPU: Intel(R) Xeon(R) Gold 6242) 4 CPU 8 GB SLES 15 SP3 Python 3.9.10 MariaDB 10.5.17 Mailman 3.3.5 Thanks. wesley Wesley Wong Senior Systems Engineer Anderson Computing & Information Services | ACIS 310-206-2571 [ucla-logo---new_smaller] ___________________________________________ Mailman's content filtering has removed the following MIME parts from this message. Content-Type: image/png Name: image001.png Replaced multipart/alternative part with first alternative.

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Mailman2 CLI commands for Mailman3
by Dave Hall 05 Oct '22

05 Oct '22

Hello. Sorry if this is an old topic. I'm in the process of migrating from 2.1 to 3.2. In my use case one of the advantages of Mailman 2.1 vs services like Google Groups has been the ability to manage lists from the command line. Things like using sync_members to update the list for a committee when the membership of the committee is updated one a year, or like using find_members and remove_members to remove a user from all mailing lists when they leave the organization. Even the ability to script mailing list creation. So far I haven't found these commands in Mailman3. I hope there is a plan to add these soon. Thanks. -Dave -- Dave Hall Binghamton University kdhall(a)binghamton.edu

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Django site - how to create programmatically - new install
by daniel.botting＠codethink.co.uk 03 Oct '22

03 Oct '22

Hi all, I've mainly setup mailman3 to replace our mailman 2.1 install using Ansible, a point I could do with some assistance on is setting the fqdn used programmatically. I've been doing alot of reading before creating this thread. To create a domain I currently navigate to: https://serverfqdn.com/postorius/domains/ and click 'Add Domain'. I believe this is setting the name of the Django site, please accept my apologies if I'm wrong and the SITE_ID=1 is then used, I am only planning to use one domain only. I'm using Postgres and when I check the contents of the Django_mailman3_maildomain table as below afterwards: mailman3web=# TABLE django_mailman3_maildomain; id | mail_domain | site_id ----+--------------------------------------+--------- 1 | mailman3-test2.guest.codethink.co.uk | 1 Many thanks Daniel

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Upgrade Mailmam Core from
by sascha.rissel＠gmail.com 03 Oct '22

03 Oct '22

Hello, I have newly set up Mailman 3 on Ubuntu 20.04. Sending and receiving mails between list members does work, but I am currently experiencing two issues: 1) a lists non-members who send mails to the list don't get notified about the message being held for moderation. Moderation itself doesn't seem to work. The moderation list is always empty. 2) Archiving is activated within list settings, but there isn't any archive created. I found this thread, where the first of these issues is also described: https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/thread/… Here there is an incompatibility between Mailmain 3 and Python depicted, which also seems to affect me. I am running Mailman 3.2.2 on Python 3 .8.10. So I need to either upgrade Mailman Core or downgrade Python. I already did > apt-get upgrade > apt-get update Unfortunately this didn't upgrade Mailman Core's version. Which steps do I have to undertake to upgrade Mailman Core? Regards, Sascha.

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All addresses in a bounced list posting seem to be considered as bouncing
by Andy Smith 01 Oct '22

01 Oct '22

Hi, I noticed this happened (bounce.log): Jul 09 12:46:51 2022 (71506) Member xxxxx(a)xxxxx.force9.co.uk already scored a bounce on list users.mailman.bitfolk.com today. Jul 09 12:46:51 2022 (71506) Bounce message for a non subscriber: Email users-leave(a)mailman.bitfolk.com is not a subcriber of users.mailman.bitfolk.com Jul 09 12:46:51 2022 (71506) Member andy(a)bitfolk.com on list users.mailman.bitfolk.com, bounce score = 1. Jul 09 12:46:51 2022 (71506) Bounce message for a non subscriber: Email users(a)mailman.bitfolk.com is not a subcriber of users.mailman.bitfolk.com What happened here is that a reply to one of my posts was rejected by subscriber xxxxx(a)xxxxx.force9.co.uk at smtp time (Exim mainlog): 2022-07-09 12:46:13 1oA9qc-007qOx-0T ** xxxxx(a)xxxxx.force9.co.uk R=dnslookup T=remote_smtp H=mx.avasin.plus.net [212.159.8.200] X=TLS1.2:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256 CV=yes DN="businessCategory=Private Organization,jurisdictionOfIncorporationCountryName=GB,serialNumber=03279013,C=GB,L=Sheffield,O=Plusnet plc,CN=mx.avasin.plus.net": SMTP error from remote mail server after end of data: 552 Spam Message Rejected The message contained my email address (andy(a)bitfolk.com) in quoted text, since it was a reply to a message of mine, and also contained addresses from the list's footer, which accounts for the log messages about users-leave(a)mailman.bitfolk.com and users(a)mailman.bitfolk.com. I'm concerned that Mailman seems to have scored my address as bouncing even though it isn't, merely because it appears inside a message that was rejected. Is that expected? Is there any way to avoid it? I see that Mailman has a bunch of heuristics to parse bounce messages. In this case though, there shouldn't have been a bounce message received to users-bounces@, as this was an SMTP-time rejection. Mailman seems to have parsed addresses out of the actual mail it was sending, rather than only scoring the subscriber address it was trying to send a list posting to. Cheers, Andy

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Help addressing some issues with mailman 3 docker images
by Clark Boylan 01 Oct '22

01 Oct '22

Hello, Some of us at opendev.org are looking to migrate to mailman 3 for our list servers. We've got about 98% of things sorted out using maxking's docker images (thank you for publishing those along with excellent documentation). There are however a small number of things that we've run into that we'd like to address before we take this to production. * Mailman 3 relies on lynx to convert html email to txt email. Lynx isn't currently installed in the docker images, but I've pushed a PR to add it to the images. https://github.com/maxking/docker-mailman/pull/552 * There are some user and group inconsistencies between the images. Not a deal breaker, but would be good to understand if these are intentional or if they can be changed without massively impacting people. https://github.com/maxking/docker-mailman/issues/550 * Issues with ALLOWED_HOSTS settings making assumptions about the environment and its inputs. We've worked around these by bind mounting in our own settings.py with these problems addressed, but it would be good to address them in case anyone else has run into this too. Details in these github issues: https://github.com/maxking/docker-mailman/issues/548 https://github.com/maxking/docker-mailman/issues/549 Ideally we'd avoid forking the images downstream and modifying them ourselves, but it seems the docker image repo is not getting a ton of attention recently. Totally understand that this may not be the biggest priority. We're happy to help address these by writing fixes and sending pull requests, but guidance would be appreciated before we head too far down that road. Once again thank you for the great documentation and images. They have already gotten us most of the way to production and the issues we've found are relatively minor. Clark

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