- Mailman-users - lists.mailman3.org

locked files problem after reboot
by mailman3＠malevil.cc June 20, 2020

June 20, 2020

hey, I have got a problem with flufl.lock in mailman3. When my server is rebooted, locked files seems to stay and cause errors so mailman3 core wont start (it is started automatically by supervisord service): PermissionError: [Errno 1] Operation not permitted Traceback (most recent call last): File "/home/user/.local/lib/python3.6/site-packages/mailman/bin/master.py", line 146, in acquire_lock lock = acquire_lock_1(force) File "/home/user/.local/lib/python3.6/site-packages/mailman/bin/master.py", line 125, in acquire_lock_1 lock.lock(timedelta(seconds=0.1)) File "/home/user/.local/lib/python3.6/site-packages/flufl/lock/_lockfile.py", line 259, in lock raise TimeOutError('Could not acquire the lock') flufl.lock._lockfile.TimeOutError: Could not acquire the lock I have to remove the files in var/locks manually to go forward. Is there a configuration error for my setup? Or is it just a not fixed bug? Greetsn, jekyl

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Exim: is it possible to host mailman and exim on different hosts? Howto?
by Jörg Schulz June 20, 2020

June 20, 2020

as of the documentation, https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/docs/mta.h… , exim4 (and postfix similarly) need to have access to the mailman filesystem (MM3_HOME=/opt/mailman/var). If exim and MM would be on different hosts (or different docker environments), how would we need to configure that?

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What database to choose for production deployment: Postgres or MySql
by pgrzywaczewski＠gmail.com June 20, 2020

June 20, 2020

Hi, What database is better for large deployment: Postgres or MySql? 'Large' means - around 15k mailing lists - 36k incoming messages per day - 270k outgoing messages per day distributed to recipients Is there preference from performance point of view? Or something else worth mentioning? Thanks, Paweł

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how to delete a list member using the Linux command line
by Mike Wertheim June 19, 2020

June 19, 2020

I have Mailman 3.2.1 installed (on Debian Linux), using exim4 as the MTA. I have been trying to figure out how to use the Linux command line to add members to a list and delete members from a list, but am having trouble with deleting. Here is what works for adding a list member... % echo mike(a)foo.com | mailman members --add - mylist(a)domain.org Here is what works for viewing the list members... % mailman members mylist(a)domain.org But I'm having trouble deleting a member. Here is what I have tried that didn't work... # echo mike(a)foo.com | mailman members --delete - mylist(a)domain.org Usage: mailman members [OPTIONS] LISTSPEC Try "mailman members -h" for help. Error: no such option: --delete # echo mike(a)foo.com | mailman members --delmembers - mylist(a)domain.org Usage: mailman members [OPTIONS] LISTSPEC Try "mailman members -h" for help. Error: no such option: --delmembers What is the correct command to delete the member mike(a)foo.com from the list mylist(a)domain.org? (I ran "mailman members -h", and it mentions "add" but does not mention deleting at all.)

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LTMP to Postfix problem
by Brian Carpenter June 19, 2020

June 19, 2020

On one of my mailman 3 servers, I am having a problem with Postfix failing to deliver email to Mailman. I keep seeing this in the mail.log: status=deferred (connect to 127.0.0.1[127.0.0.1]:8024: Connection refused) What is causing this and how can I fix it? -- Please let me know if you need further assistance. Thank you for your business. We appreciate our clients. Brian Carpenter EMWD.com -- EMWD's Knowledgebase: https://clientarea.emwd.com/index.php/knowledgebase EMWD's Community Forums http://discourse.emwd.com/

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Mailman do not honor non-members moderation setting sometimes
by Alan So June 19, 2020

June 19, 2020

Some of our users reported that their list do not honor the nonmembers moderation setting sometimes. We were not able to repeat the issue consistently earlier. Luckily, we found the following way to repeat the issue: 1) Create a new list with user(a)example.com as owner. (Ordinary disussion mailing list style) 2) Change the list Settings -> Message Acceptance -> Default action to take when a non-member posts to the list: Discard 3) Add a non-member user(a)example.com and change the moderation setting to Hold for Moderation 4) Send an email to the list using user(a)example.com. The message is discarded instead of being held. The above can also be repeated with the list setting Default action to take when a non-member posts to the list: Accept immediately. The message sent from user(a)example.com is accepted instead of being held. So, it looks like that the non-members moderation setting is ignored for this case. Further study indicate that the issue did not happen if the owner is set to user(a)example.com *after* adding the non-member. It looks like that we can avoid the issue during list creation. However, the issue can also be triggered through other ways such as adding the non-member as member and remove. There are also ways to resolve the issue by removing all corresponding member, non-member, owner setting and add them back in the following order: non-member, owner. However, it does not always work and so I do not go into the detail at this moment to complicate the issue.

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Affinity Mailman Is Now Beta
by Brian Carpenter June 18, 2020

June 18, 2020

Dear Mailman Admins and Users, Affinity Mailman is our new admin interface for Mailman 3 and we intend to use it to replace Postorius. It has been under development for about 3 months now and it recently reached beta. Calling For Beta Testers Now that Affinity is in beta, we are looking for list admins to help us beta test it. We are interested in getting some feedback and feature requests from beta users. If you are interested in helping us test out Affinity and get a sneak peek of the future of Mailman administration, then email me at brian_carpenter(a)emwd.com <mailto:brian_carpenter@emwd.com?subject=Affinity%20Beta&body=I%20am%20interested%20in%20Beta%20Testing%20Affinity> and I will begin the process of setting you up with an Affinity Mailman admin account and provide 2 test lists to use for beta testing purposes. While I am at it: Empathy Is Now Under Development "So what in the world is Empathy? I mean really - first Affinity and now Empathy?" That is correct. We figured if we are going to replace the default admin UI (Postorius) for Mailman 3, we might as well replace the default forum/archive UI (Hyperkitty) for Mailman 3. With Empathy, we are bringing a beautiful and user-friendly experience for those who wish to use Mailman 3 as a modern forum. We want Empathy to bring a true community like approach to the use of Mailman 3 via a browser. It will supplement the mailing list feature of Mailman 3 with an easy to use online forum. So Mailman 3 users will get the best of both worlds: a modern mailing list app AND a modern forum app. Empathy can also be used to display your list threads (archives) in an easy-to-read manner, and those threads can be categorized by tags and will be searchable. -- Please let me know if you need further assistance. Thank you for your business. We appreciate our clients. Brian Carpenter EMWD.com -- EMWD's Knowledgebase: https://clientarea.emwd.com/index.php/knowledgebase EMWD's Community Forums http://discourse.emwd.com/

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mailman2 vs Mailman3 database usage
by Ralf Wiegand June 18, 2020

June 18, 2020

Do you have a list of the information that is stored in the DB? I don’t think it is emails, so it may be an issue of the number of lists and email addresses or users that are allowed to post or moderate. Thank You, Ralf Wiegand -- Ralf K. Wiegand -- Leidos 6909 Metro Park Dr Franconia, VA 22310 469-289-7372 (mobile) ralf.wiegand(a)tena-sda.org

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Exception in the HyperKitty archiver: 'utf-8' codec can't encode characters
by Gilles Filippini June 18, 2020

June 18, 2020

Hi, I'm seeing the above error in mailman-core logs each time an email is processed. Is there something I missed in the configuration? I'm using dockerized mailman 0.3 from maxking. Thanks in advance, _g.

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Mailman3 on Ubuntu 20.04 LTS - Best Installation Method?
by matthew＠alberti.us June 18, 2020

June 18, 2020

Hi Everyone, I have been trying unsuccessfully for several weeks to install Mailman3 on a new Ubuntu 20.04 LTS server. First I tried to just use the Ubuntu packages, which is MM3 version 3.2.2. Unfortunately Ubuntu 20.04 also uses Python 3.8 which has a compatibility issue with MM 3.2.2. There is a bug submission submitted to the Ubuntu team. Next I tried to use the virtualenv method, as that was recommended for production anyway by Mailman installation documentation. I couldn't get that to work either, as there is again some known issue between one of the django packages and another python package called 'six'. Has anyone been able to get Mailman3 running stable on Ubuntu 20.04? What installation method did you use? At this point, I'm really tempted to just stay at MM2 until the Ubuntu packages get sorted out. I've also considered just closing the Gitlab repo and trying to set it up manually. But I feel like it isn't worth all the trouble. Thanks in advance for your thoughts. - Matt

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