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

Lessons learned and a couple little gotcha for newbies
by William Oliver April 13, 2022

April 13, 2022

I just finished, with great help from Mark Sapiro on the list, a new installation of mailman3. I used the instructions at https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/docs/insta… and https://docs.mailman3.org/en/latest/install/virtualenv.html There were a couple of gotchas that I didn't see well documented. 1) I got the error django.template.library.InvalidTemplateLibrary: Invalid template library specified. ImportError raised when trying to load 'hyperkitty.templatetags.decorate': cannot import name 'escape_html' from 'mistune.scanner' (/opt/mailman/venv/lib/python3.9/site- packages/mistune/scanner.py) when I ran 'mailman-web migrate' The fix was trivial: I just added the lines: from mistune.util import escape_html from mistune.util import escape_url to /opt/mailman/venv/lib/python3.9/site-packages/mistune/scanner.py It's not hard to search for those definitions, but if someone doesn't know a smattering of python, it might not be obvious. 2) Similarly, migrate (using postgres) also gave the error: File "/opt/mailman/venv/lib/python3.9/site- packages/django/db/backends/postgresql/utils.py", line 6, in utc_tzinfo_factory raise AssertionError("database connection isn't set to UTC") I was able to find a discusson of this one at https://stackoverflow.com/questions/68024060/assertionerror-database-connec… which had me downgrade to an older version of psycopg2-binary: pip install psycopg2-binary==2.8.6 There might be a different fix, but this worked. 3) When I ran the test "uwsgi --ini /etc/mailman3/uwsgi.ini" I got the error: ModuleNotFoundError: No module named 'settings' This was also trivially fixed by adding the path: export PYTHONPATH=$PYTHONPATH:/etc/mailman3 in /opt/mailman/.bashrc 4) Sometimes when I rebooted the machine, when I ran 'systemctl start mailman3' I'd get the error that mailman wouldn't start because the lock was stll there. I never could figure out where the lock was, so I worked around it by replacing ExecStart=/opt/mailman/venv/bin/mailman start with ExecStart=/opt/mailman/venv/bin/mailman start --force in /etc/systemd/system/mailman3.service I'm sure there's something bad about doing that, but it works for me, so far. 5) I had a problem with mail to outside people not being delivered while mail to the local host was delivered. It turned out that this was because in my mailman.cfg I had "smtp_host:my.listserver.tld when it should have been localhost. The error was "relay access denied." To fix this, I had to add my.listserver.tld to "mynetworks" in /etc/postfix/main.cf, ie change: mynetworks = 127.0.0.0/8 10.0.0.0/24 to mynetworks = 127.0.0.0/8 10.0.0.0/24 111.222.333.444 <--- my ip address However, Mark Sapiro (a God) told me this was because I had changed a line in the [mta] section of mailman.cfg. I had changed smtp_host: localhost to smtp_host: mydomain.tld Here's the thing. The reason I did this was because the instructions at https://docs.mailman3.org/en/latest/config-core.html give this as their model: [mta] incoming: mailman.mta.postfix.LMTP outgoing: mailman.mta.deliver.deliver lmtp_host: mail.example.com lmtp_port: 8024 smtp_host: mail.example.com <---- not localhost smtp_port: 25 The instructions are good, but there are a few places where one size does not fit all, I guess. 6) A second error in delivery to outside addresses resulted in an "Access denied" error. A search on the internet revealed that this had to do with (for me) smtpd_recipient_restrictions in postfix. See, for instance: https://know.mailsbestfriend.com/postfix_error_relay_access_denied_noqueue_… Changing this fixed things. I'm not sure, but I think this shows up mostly with installations that include dovecot. 7) If you are using virtual domains in postfix, you need to use the "unusual postfix configuration" in https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/docs/mta.h… virtual_alias_maps = hash:/path-to-mailman/var/data/postfix_vmap 8) You need to manually set the local virtual host for mailman3. Somehow, I got the impression from the installation instructions that this was done automagically to the default x.mydomain.tld if your domain is mydomain.tld. It doesn't. 9) Follow the instructions verbatim, and follow them in the order provided. I installed postfix and nginx out of order, and it did OK, but once you get into the python virtual environment, it is easy to miss something if you don't do it in order. 10) Jot down lots of notes. This is one of the more complicated installations I've done, mostly because it involved configuring a zillion packages to talk to each other: Postfix, nginx, postorius, hyperkitty, django, and others (I'd never heard of "whoosh" or "sass" for instance). All of these can be unforgiving with configuration errors. The default installation instructions assumed a number of packages I'd never used. I'm an apache/dovecot/mysql kind of person, and I had to switch to nginx/postgres to use the instructions as the written defaults. I'm sure I could have used apache and mysql, but it would mean trying to figure out what didn't work without following the installations verbatim. I'd never even heard of postorius, hyperkitty, or django. So, it was easy to get confused a bit. Taking notes of changes I made was important in being able to back out of disastrous choices. Plus, once I'd installed it on one machine, I sat down and installed it on another machine, and it was very useful to have written down how I fixed an issue when it came up again -- and I didn't remember exactly what I had done. 11) Make multiple sequential backups of configuration files. I went down a couple of paths I shouldn't have gone down. For instance, with the vmap issue, I got it in my head that it was a postfix configuration issue, not a mailman issue. So I kept changing things in postfix. Once I was told that it was in *mailman* I had to set the virtual host, I needed to back out of about 8 tweaks I'd made to main.cf in /etc/postfix. If I hadn't been making main.cf.backup.01, main.cf.backup.02, etc. I would have had to spend another few hours trying to remember what inappropriate changes I had made. This is particularly true for me because I am not a great typist, and when I try to retype something to back out, there's a reasonable chance I'll mistype something and it still won't work. With these backups, I don't have both manually back out of things *and* proof my typing again and again. It's a lot easier to delete backups once things are working than to try to remember what you did late at night after a couple of bourbons. 12) Choose one set of installation instructions and follow it. Don't try to mix instructions from different tutorials unless you really know what you are doing. I didn't. For instance, there's a different set of mailman3 installation instructions at: https://wiki.list.org/DOC/Howto_Install_Mailman3_On_Debian10 It does things a little differently. It's useful to look at that when you are debugging why something's not working, but you can get into some trouble trying to do both installations at the same time -- which I found myself doing when something wasn't working. It didn't help. billo

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Problem with redirection when entering alias without a / at the end
by Jens Günther March 31, 2022

March 31, 2022

Hey there, I'm using Apache2 as the webserver, configured https://mailman.xyz.de as Web host. When I want to get to Mailman Starting Page now I need to Enter the following URL: https://mailman.xyz.de/mailman3/ to be directly redirected as expected to https://mailman.xyz.de/mailman3/postorius/lists/ -> works. Problem: When leave out the slash at the end and I ONLY enter the following URL: https://mailman.xyz.de/mailman3 -> then I'm wrongly redirected to a page, taht does not exist: https://mailman.xyz.de/mailman/postorius/lists/ -> 404 Where can I change this misbehaviour? In Apache-conf everything seems as it'S in the docs, for the vHost I do not have any other custom settings. Thank you in advance. By the way: Is there an easy way to redirect directly from https://mailman.xyz.de to https://mailman.xyz.de/mailman3/postorius/lists/ -> what would be a possibility for that?

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Docker-Setup: example.com in test mails
by Bjoern Franke March 29, 2022

March 29, 2022

Hi, we are running a docker setup with mailman-web and mailman-core. To our confusion, test mails testing for bounces are sent from example.com From: Mailman <mailman(a)example.com> To: Mailman Bounces <mailman-bounces(a)example.com> instead of the list domain and are therefore often considered as spam. The list domain should be lists.ffnw.de. Did I miss some setting? Best Regards Bjoern

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ARC
by David Krantz March 20, 2022

March 20, 2022

Hi all, Is the documentation correct that ARC should be as simple to configure in mailman 3 as to add the private DKIM key and restarting mailman? (https://mailman.readthedocs.io/en/latest/src/mailman/handlers/docs/arc_sign…) I've tried that without finding any effect in my so far limited tests. I have not found anything in logs although I might have missed looking in one. Are there any known limitations? I have previously a working DKIM signature on outgoing mail as well as correctly set up SPF in DNS and SPF-checking on received mail. The verification on incoming mail adds a few headers but I do not think that that should be an issue, neither would the DKIM signing change anything should mailman add new headers. I now run Mailman 3.2.3 (La Villa Strangiato) on Python 3.7.4. Cheers // David

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list footer questions
by Mohsen Masoudfar March 14, 2022

March 14, 2022

Hi, This seems to me like basic simple questions, I have tried FAQ and other resources, with not much success. I have two questions: 1. When I send an email to a list, in gmail and yahoo I see the following text with the links at the end of the email body: _______________________________________________ Testlist_dmark1 mailing list - listname(a)domain.tlb<mailto:testlist_dmark1@newlistserv.aaas.org> To unsubscribe send an email to listname-leave(a)domain.tlb In<mailto:listname-leave@domain.tlb%0b%0bIn> outlook this is added as an attachment in the form of a TEXT file, when you open it, you see the same text. Question: Is there a way to change this, that it looks in outlook the same way as it appears in gmail/yahoo? I know MS does it own stuff sometime and we have no impact on that, but I was thinking maybe we might change the footer in a way that outlooks sees that as part of email body. 2. How may I change the format and the text in footer? I was expecting it under list > setting, in postorius, but I could not find it. Best regards Mohsen Masoudfar Lead System Analyst, IT Operation American Association for the Advancement of Science 1200 New York Ave, NW, Washington, DC 20005 202-326-7087

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Mailman3 reinstall fail, need some help
by Yvan ♞ March 12, 2022

March 12, 2022

hello, trying to install mailman 3 on yunohost with 2 domains, have some trouble... server error, no more access Tried to remove, reinstall, and then error https://paste.yunohost.org/raw/xiqoyajegi Yvan

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Mailman3 not working following distribution upgrade from Debian 10 to 11.
by gordon＠dickens.com March 6, 2022

March 6, 2022

I performed a distribution upgrade from Debian 10 Buster (which runs mailman 3.2.1) to Debian 11 Bullseye (which runs mailman 3.3.1) with the command "apt-get full-upgrade -y" and everything apparently worked properly except at the end of the upgrade when the following error dialog was generated by the mailman3-web and mailman3-full post-installation scripts: Setting up mailman3-web (0+20200530-2) ... Determining localhost credentials from /etc/mysql/debian.cnf: succeeded. dbconfig-common: writing config to /etc/dbconfig-common/mailman3-web.conf dbconfig-common: flushing administrative password sed: -e expression #2, char 77: unterminated `s' command dpkg: error processing package mailman3-web (--configure): installed mailman3-web package post-installation script subprocess returned error exit status 1 dpkg: dependency problems prevent configuration of mailman3-full: mailman3-full depends on mailman3-web; however: Package mailman3-web is not configured yet. dpkg: error processing package mailman3-full (--configure): dependency problems - leaving unconfigured Errors were encountered while processing: mailman3-web mailman3-full E: Sub-process /usr/bin/dpkg returned an error code (1) Now, every time that I execute "apt-get upgrade" then I continue to get the above error dialog. Also, the command "dpkg-reconfigure mailman3-web" generates this output: /usr/sbin/dpkg-reconfigure: mailman3-web is broken or not fully installed So, I am now stuck since apt-get is saying that mailman3-web is not configured yet, however, neither apt-get nor dpkg-reconfigure will successfully configure mailman3-web. Does anybody have any idea how to fix this? I would very much appreciate some suggestions. Thanks, Gordon

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Mass un/subscribe optimization?
by Bryan Loniewski Feb. 28, 2022

Feb. 28, 2022

Hi -- We've noticed slowness in mass un/subscribing users; looking through the issue(s) log we see both #419 [1] and #627 [2] open and related. From the cmd line we get better performance, but with the subscriber size on many of our Faculty/Staff/Students ad-hoc lists (think 1k-15K subscribed addresses) and with our number of lists (2600) and unique owners utilizing these actions it would be helpful to optimize the mass actions. We wanted to get some thoughts and guidance on what needs to be optimized/redesigned/fixed? Or is there already something in the works, but needs more time? We may be able to provide resources to encourage and/or assist with any development and/or testing... We run a split core/web setup with Apache,mod_wsgi and MySQL backend (AWS hosted). [1] - https://gitlab.com/mailman/mailman/-/issues/419 [2] - https://gitlab.com/mailman/mailman/-/issues/627

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Migration of archives from Sympa to MM3
by Tom Fillmore Feb. 28, 2022

Feb. 28, 2022

Hi, all - At the moment I have a site that uses Sympa. It has more than 150 lists. Moving existing lists to MM3 looks doable the archives are a different story. Has anyone ever migrated archives from Sympa to MM3? Sorry if this is answered somewhere else... Thanks T Fillmore southern California The earth is but one country and mankind its citizens... - Baha'u'llah

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Migrating archives from mailman2 to mailman3 with attachments
by bob B Feb. 28, 2022

Feb. 28, 2022

So I see the process for migrating an archive from mailman2 to mailman3 https://docs.mailman3.org/en/latest/migration.html.................. i.e python manage.py hyperkitty_import -l foo-list(a)example.com $var_prefix/archives/private/foo-list.mbox/foo-list.mbox but does the migration handle attachments?? attachments are in ..../archives/private/foo-list/attachments. I assume this is if you are upgrading in place? I am migrating to a new server and my plan is to follow these steps but copy the config.pck. and .mbox files to the new server and import them, but then it looks like I need to copy the attachment directory? if so how do I import the attachments to mailman3?

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