Mailman 3 October 2021 - Mailman-Users

Upgrade instructions
by G. Armour Van Horn June 7, 2025

June 7, 2025

I have a couple of Mailman lists on a server happily running 2.1.9 but I am also a moderator on a very active list that's running on 2.1.12. I do not host this list, just volunteer because I have some experience with Mailman. That list has started to get some significant bounces due to the DMARC issue that isn't addressed in this older version. The host intends to upgrade so that we can address that but they report that they haven't been able to make archives searchable in their experimentation with 2.1.16. I don't know if that search function is part of the more recent versions of Pipermail or if they've installed something else. I'm nervous about attempting to upgrade, given the paucity of documentation for that, particularly the fact that it tells me to use the same configuration options I used for the current install and I haven't a clue what those might have been. If I could find some more robust upgrade docs I'd like to try the upgrade in case I could contribute anything to the problem with the large list. Today I had to clear the bounce flags on 47 members. Not all that hard, but tedious. Van -- ---------------------------------------------------------- Sign up now for Quotes of the Day, a handful of quotations on a theme delivered every morning. Enlightenment! Daily, for free! http://www.qotd.org/subscribe.html For photography, web design, hosting, and maintenance, visit Van's home page: http://www.domainvanhorn.com/van/ -----------------------------------------------------------

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Editing Mailman's text files
by Pete Bell May 8, 2024

May 8, 2024

Hi. I'm a new member of this group but have been running an email list with Mailman for a long time. I am now setting a list up again and want to give a "look and feel" to the list which has more branding of my user group as a whole, and less of a Mailman-feel. I seem to remember that besides editing the public HTML pages, it is possible to edit the text files which Mailman automatically sends out for certain needs (such as 'approve.txt', 'adminsubscribeack.txt', 'invite.txt', and so on). A. Is this still the case? B. If so, where can I find them? (in case they've changed from the ones I have from long ago). C. Where do they need putting, so that Mailman can use them again? It's important that I should tell you that Mailman on my webhosts servers is a "server-wide" installation, and I don't get to edit anything which other clients to their servers need. This would be only for my own use, and as such I need to know where these files go in my own webspace, and how to get Mailman to use them instead of the default ones. I should also say that I have done this before, so unless the facility to do this has been ditched in recent years, I *should* still be able to do it ! Does Mailman perhaps look for these files somewhere in my webspace (which I have to give a specific name), and if it doesn't find them it goes on to find its default versions of these files? Thanks in advance for your help. Pete Bell, UK

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Running two list with same email prefix
by Andrea Cappelli Feb. 27, 2024

Feb. 27, 2024

Hi all, I'm running a mail server with Debian Lenny, MTA is Postfix and i will use postfix-to-mailma.py script to run list I would set up Mailman for running mailing list with same email prefix on different domains, obvious with different list names For example we have ml.domain1.com and ml.domain2.net, i would like to have LISTADDRESS LISTNAME tech(a)ml.domain1.com tech-ml.domain1.com tech(a)ml.domain.2.net tech-ml.domain2.net In this way i can have the same address on differente domains and Mailman (my version is 2.1.11) can distinguish between lists because the list name is different. The list name will be also used to access web interface, so we have http://ml.domain1.com/mailman/admin/tech-ml.domain1.com http://ml.domain2.net/mailman/admin/tech-ml.domain2.net Is possible to accomplish this task? Any idea?

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Hide list address?
by Ricardo Kleemann Nov. 17, 2023

Nov. 17, 2023

Hi, Is there any way to configure Mailman such that, for an announcement-only type list, when a message is sent to the list, the To: shows the member's address, rather than the list address? Some list software allows the ability to hide the list address itself, so that address is not advertised. I couldn't find any configuration specific to that.

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Using cronjob to remove and add members to a mailing list
by Jerry Barnabee Aug. 10, 2022

Aug. 10, 2022

I want to be able to run a cronjob on my server that uses a php script to add new users and/or remove users from a mailing list. Not having any luck finding any simple examples. My thought is that the php script would get email addresses from a database (which I can do) and then feed them to a mailman command line to either add or remove a user. The cronjob is entered via Cpanel. Have several cronjobs that modify databases but have never tried something that would actually execute a unix command. Thanks, Pineyscripter

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Problem with outlook.com
by nikos June 15, 2022

June 15, 2022

Hello list. For some reason none of hotmail or outlook users don't receive any of our newsletter. Finally all of them auto unsubscribe. The following is an error received form protection.outlook.com: Remote Server returned '550 5.6.0 CAT.InvalidContent.Exception: ExchangeDataException, Decoding of header Subject failed+ADs- raw value: +AFs-Ps+AF0- +AD0-?iso8859-7?b?wer98fnz5yDF8OX05enh6t7yIOXq5N7r+-fPn8iDz9Oft?+AD0-; cannot handle content of message That happened since September 10th this year. Before, all received without problem. Any suggestions? Thank you in advance. Nikos.

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Re: [Mailman-Users] Automate Moderator Functions
by Andre de Azevedo Cunha April 18, 2022

April 18, 2022

Hi, i`m trying to reject messages bigger then MAX_MESSAGE_SIZE. I configured my Hold.py was described bellow: replaced hold_for_approval(mlist, msg, msgdata, _ MessageTooBig(bodylen,_mlist.max_message_size)) with rej = MessageTooBig(bodylen, mlist.max_message_size) _ raise Errors.RejectMessage, rej.reason_notice_ The message was rejected, but the sender dont receive any notify about that. The mailman vette log too. How can i solve this? Thanks, André Dennis Putnam wrote: > >I am getting back to this and I have a question about maintenance. What >is the correct way to modify this so that it will not get destroyed by >updates? There are two ways to proceed. You can modify Mailman/Handlers/Hold.py itself, but before overwriting it, make a "diff -u" between the base Hold.py and your modified version to use as a patch to apply after any upgrade. A better way is to leave Hold.py unchanged and make your own edited version as say Mailman/Handlers/MyHold.py. Then you can replace the base Hold.py Module with your MyHold.py by putting GLOBAL_PIPELINE[GLOBAL_PIPELINE.index('Hold')] = 'MyHold' in mm_cfg.py. Note that if you are going to do this, and you want also to move MimeDel before Hold, you must either put the above line after the lines GLOBAL_PIPELINE.remove('MimeDel') GLOBAL_PIPELINE.insert(GLOBAL_PIPELINE.index('Hold'), 'MimeDel') in mm_cfg.py or put it before, but then also change GLOBAL_PIPELINE.insert(GLOBAL_PIPELINE.index('Hold'), 'MimeDel') to GLOBAL_PIPELINE.insert(GLOBAL_PIPELINE.index('MyHold'), 'MimeDel') I recommend the former as in # # Put MimeDel ahead of Hold so "too big" is based on content filtered # message. # GLOBAL_PIPELINE.remove('MimeDel') GLOBAL_PIPELINE.insert(GLOBAL_PIPELINE.index('Hold'), 'MimeDel') # # Replace Hold with local version # GLOBAL_PIPELINE[GLOBAL_PIPELINE.index('Hold')] = 'MyHold' Since mm_cfg.py survives upgrades, this should survive. >Also does this same procedure apply to other automatic rejections such >as implicit destination? >On 9/24/2012 8:43 PM, Mark Sapiro wrote: >> >> To automatically reject or discard messages that exceed the list's size >> limit, find the section of the Mailman/Handlers/Hold.py that ends with >> the lines >> >> >> if bodylen/1024.0 > mlist.max_message_size: >> hold_for_approval(mlist, msg, msgdata, >> MessageTooBig(bodylen, >> mlist.max_message_size)) >> # no return >> >> (there is one wrapped line in the above) and replace >> >> hold_for_approval(mlist, msg, msgdata, >> MessageTooBig(bodylen, >> mlist.max_message_size)) >> >> with >> >> rej = MessageTooBig(bodylen, mlist.max_message_size)) >> raise Errors.RejectMessage, rej.reason_notice >> >> to reject the message or with >> >> raise Errors.DiscardMessage >> >> to discard the message. Note that this will not honor the list's >> forward_auto_discards setting. to do that you would need to put >> >> from Mailman.Handlers.Moderate import do_discard >> >> with the other imports near the beginning of the >> Mailman.Handlers.hold.py module and then replace the lines with >> >> do_discard(mlist, msg) Yes, similar changes would apply to other holds in Hold.py. -- Mark Sapiro <mark at msapiro.net [1]> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan -- Links: ------ [1] http://mail.python.org/mailman/listinfo/mailman-users

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Newbie User
by David Elliott March 17, 2022

March 17, 2022

Hi, I am a newbie to Mailman and cpanel and I need some help, please. I have set up a mailing list for my tennis club (about 300 on list) and it seems to work ok BUT each recipient only sees the mailing list name rather than his own email name in the 'to' box. One of the recipients recently did a 'reply to all' and consequently sent his reply to the whole mailing list. I'm sure there must be a way to prevent this but I can't find it! David Elliott

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Munge without CC or Reply-To
by Diez Feb. 22, 2022

Feb. 22, 2022

Hello. I'm new at this list. I'm trying to setup a list (I'm not the site admin), and I'd like to use Munge From setting, but I'd like not have Reply-To field or CC field, but I suspect is not possible. I was testing with anonymous_list, but the problem is that only a certain member should send some kind of calls, but with anonymous_list anyone could send it. I'm setting up with 2.1.23 version. Regards and thanks in advanced and sorry for my bad english

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Expected mailq behavior/maintenance commands
by John Lake Nov. 1, 2021

Nov. 1, 2021

Howdy, Not-so-longtime watcher—first time poster. I’ll start by saying how much that I appreciate this Mailman resource, as a noob it has proved very valuable for me. I inherited the service owner role of Mailman recently and have been impressed at how well it works. Have not had any major pings until a few days ago, our monitoring system alerts if the queue exceeds 400 messages and it spiked to more than 600. It appears that a mass mailer produced a large number of bounces. One of my co-workers moved some of the messages out of the queue and it rapidly went down to below 300—and then vacillated over the next few days between 225-260 messages. It is now below 200 messages. I have not monitored the queue this closely before and it has raised some questions. 😊 I’ve looked through the documentation and community posts on the GNU website and I have not found specific information relating to what the expected mailq behavior/healthy number of messages is. I expect that this would vary by the environment and number of messages sent but am curious as to what would considered to be a normal/healthy threshold of queued messages. Are there purge/maintenance commands that can be leveraged for normal maintenance or in the case above—more of a kill-switch purge? Thanks in advance for any assistance. Happy Friday! John Lake Application Security Analyst University of Oregon

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