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

Find a smtp server to send out emails
by Leon Aug. 1, 2026

Aug. 1, 2026

Hi, This problem is not caused by mailman, but I still want to give it a shot here. I'm hosting a mailing list on top of mailman3. Emails are supposed to be sent out by AWS ses. However, ses requires that sender address must be verified, which leads to a problem that emails sent by subscribers to mailing list cannot be sent to other subcirbers, since their addresses are not verified. And it is impossible to verified every subscriber. Are there smtp service providers allowing unverified email address to send out emails, or do I have other solutions? Thanks. -- Best wishes, Leon

4 4

Internal server error instead of web interface
by Christian H. Kuhn March 22, 2026

March 22, 2026

Hi all, https://lists.qno.de/mailman3 shows an internal server error. I followed https://docs.mailman3.org/en/latest/install/virtualenv.html with MariaDB instead of PostgreSQL. Python 3.13.0 pip 25.3 mailman 3.3.11b mailman-web 0.0.10.dev14?g0997bd postorius 1.3.13 Services mailman3, mailmanweb, apache2, uwsgi up and running. uwsgi listens on [::1]:8000, apache2 is configured accordingly. Ports show up in netstat. No errors show in logs. If /mailman3 was a directory, i would have thought of user permission problems. But not with TCP ports. As :8000 is available, i would have thought that there is a problem with uwsgi. Requests arrive there and are processed: [pid: 3185672|app: 0|req: 10/17] ::1 () {28 vars in 409 bytes} [Mon Nov 3 13:24:05 2025] GET /mailman3/ => generated 5038 bytes in 28 msecs (HTTP/1.0 200) 8 headers in 261 bytes (1 switches on core 0) So uwsgi gets the request and delivers data. The problem seems that apache2 does not get the result, and i cannot find any reason. Any help? TIA QNo

4 5

Can't add emails to accept_these_nonmembers
by Ibiam Chihurumnaya March 4, 2026

March 4, 2026

I need to set some nonmembers to a list as these members send message to the list, but don't need to receive any message from the list. I've used list_name.settings['accept_these_nonmembers'].append to add members to the list, but it gets discarded once I run list_name.settings.save().

3 17

Debian upgrade Hyperkitty not archiving
by Phil Steel-Wilson March 1, 2026

March 1, 2026

Hi List, I may be in the wrong place so bear with me. I'm working at a volunteer organization with around a dozen mailing lists that were previously on mm2 that have been upgraded to mm3 with the upgrade to debian trixie. Mailman is running and the lists all work ok but i found 1800 mails in the shunt queue. Hyperkitty also shows all the old archives pre 2020 the same as in the django console. When i tried to unshunt the mails they moved to the bad queue. How do i find whats wrong here? Mailman Core Version GNU Mailman 3.3.10 (Tom Sawyer) Mailman Core API Version 3.1 Mailman Core Python Version 3.13.5 (main, Jun 25 2025, 18:55:22) [GCC 14.2.0] archive 0 bad 0 bounces 0 command 0 digest 0 in 0 nntp 0 out 0 pipeline 0 retry 0 shunt 0 virgin 0 Traceback (most recent call last): File "/usr/lib/python3/dist-packages/django/core/handlers/exception.py", line 55, in inner response = get_response(request) File "/usr/lib/python3/dist-packages/django/core/handlers/base.py", line 197, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File "/usr/lib/python3/dist-packages/django/views/generic/base.py", line 105, in view return self.dispatch(request, *args, **kwargs) ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/django/views/generic/base.py", line 144, in dispatch return handler(request, *args, **kwargs) File "/usr/lib/python3/dist-packages/django_mailman3/lib/auth/fedora/views.py", line 56, in get return self.post(request, *args, **kwargs) ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/django_mailman3/lib/auth/fedora/views.py", line 67, in post client = _openid_consumer( request, self.provider, self.provider.endpoint) File "/usr/lib/python3/dist-packages/allauth/socialaccount/providers/openid/views.py", line 29, in _openid_consumer server_settings = provider.get_server_settings(endpoint) TypeError: OpenIDProvider.get_server_settings() missing 1 required positional argument: 'endpoint' ERROR 2026-02-27 20:50:19,995 1769748 django.request Internal Server Error: /mailman3/accounts/fedora/login/ Traceback (most recent call last): File "/usr/lib/python3/dist-packages/django/core/handlers/exception.py", line 55, in inner response = get_response(request) File "/usr/lib/python3/dist-packages/django/core/handlers/base.py", line 197, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File "/usr/lib/python3/dist-packages/django/views/generic/base.py", line 105, in view return self.dispatch(request, *args, **kwargs) ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/django/views/generic/base.py", line 144, in dispatch return handler(request, *args, **kwargs) File "/usr/lib/python3/dist-packages/django_mailman3/lib/auth/fedora/views.py", line 56, in get return self.post(request, *args, **kwargs) ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/django_mailman3/lib/auth/fedora/views.py", line 67, in post client = _openid_consumer( request, self.provider, self.provider.endpoint) File "/usr/lib/python3/dist-packages/allauth/socialaccount/providers/openid/views.py", line 29, in _openid_consumer server_settings = provider.get_server_settings(endpoint) TypeError: OpenIDProvider.get_server_settings() missing 1 required positional argument: 'endpoint' [pid: 1769748|app: 0|req: 89/89] 185.191.171.15 () {58 vars in 1365 bytes} [Fri Feb 27 20:50:19 2026] GET /mailman3/accounts/fedora/login/?next=%2Fmailman3%2Fhyperkitty%2Flist%2Fluv-main%40luv.asn.au%2Fthread%2FINYPCCUO5QRQ3A2M2KRVKLNORHXNK472%2F&process=login => generated 773 bytes in 43 msecs (HTTP/1.1 500) 8 headers in 279 bytes (1 switches on core 1) [pid: 1769748|app: 0|req: 90/90] 185.191.171.13 () {58 vars in 1275 bytes} [Fri Feb 27 20:50:33 2026] GET /mailman3/hyperkitty/list/luv-main(a)luv.asn.au/message/YQDJ3OXAS2EMBUM6TDGZZRI5WT6VI4TR/ => generated 17089 bytes in 25 msecs (HTTP/1.1 200) 9 headers in 398 bytes (1 switches on core 0) [pid: 1769748|app: 0|req: 91/91] 47.82.11.77 () {58 vars in 1224 bytes} [Fri Feb 27 20:50:47 2026] GET /mailman3/hyperkitty/list/luv-main(a)luv.asn.au/message/3UQR62KTUF56C42ZGQ4NNFVEBY3HRILU/ => generated 12640 bytes in 22 msecs (HTTP/1.1 200) 9 headers in 398 bytes (1 switches on core 1) [pid: 1769748|app: 0|req: 92/92] 74.7.243.222 () {64 vars in 1503 bytes} [Fri Feb 27 20:51:11 2026] GET /mailman3/accounts/login/?next=%2Fmailman3%2Fhyperkitty%2Flist%2Fluv-main%40luv.asn.au%2Fmessage%2FLLHILHCL6MMC5U5VCOSRX7IEDZL43TID%2F => generated 9659 bytes in 10 msecs (HTTP/1.1 200) 11 headers in 509 bytes (1 switches on core 0) [pid: 1769748|app: 0|req: 93/93] 85.208.96.206 () {58 vars in 1274 bytes} [Fri Feb 27 20:51:15 2026] GET /mailman3/hyperkitty/list/luv-main(a)luv.asn.au/message/VVFNVINSMUEWWLQHY36FO2FF33ZUOW2T/ => generated 13525 bytes in 21 msecs (HTTP/1.1 200) 9 headers in 398 bytes (1 switches on core 1) [pid: 1769748|app: 0|req: 94/94] 185.191.171.7 () {58 vars in 1308 bytes} [Fri Feb 27 20:51:19 2026] GET /mailman3/accounts/signup/?next=%2Fmailman3%2Fhyperkitty%2Flist%2Fluv-main%40luv.asn.au%2Fmessage%2F43YMKZGDLKODRYMMJHZ4JUEAMY5H4MFT%2F => generated 9909 bytes in 9 msecs (HTTP/1.1 200) 11 headers in 509 bytes (1 switches on core 0) [pid: 1769748|app: 0|req: 95/95] 85.208.96.201 () {58 vars in 1308 bytes} [Fri Feb 27 20:51:20 2026] GET /mailman3/accounts/signup/?next=%2Fmailman3%2Fhyperkitty%2Flist%2Fluv-main%40luv.asn.au%2Fmessage%2F3FICKZQDDQNZLFS6HD47FL2UK64ZQRCB%2F => generated 9909 bytes in 9 msecs (HTTP/1.1 200) 11 headers in 509 bytes (1 switches on core 1) ERROR 2026-02-27 20:51:20,841 1769748 django.request Internal Server Error: /mailman3/accounts/fedora/login/

2 4

message duplication and an NNTP related error
by Laurens Kils-Huetten Feb. 28, 2026

Feb. 28, 2026

Good day, I have recently installed mailman3 on a Debian trixie system. While I managed to set up most of it (the mailing lists, postorius and also a working gateway to our inn2 news server) I'm seeing a weird duplication of messages, that seems to be related to the error messages posted below. When I switch off gating to nntp the duplication stops. Also only mail messages are duplicated, not the postings on the news server. Any pointers as to what to look into, or how to remedy this problem are greatly appreciated :) Thanks, Laurens here come the error logs: Feb 23 20:39:08 2026 (2776528) ACCEPT: <e4938b85cbd75c0b04867514fc0b8ad9(a)betola.de> Feb 23 20:39:10 2026 (2776528) ACCEPT: <e4938b85cbd75c0b04867514fc0b8ad9(a)betola.de> Feb 23 20:39:12 2026 (2776530) <e4938b85cbd75c0b04867514fc0b8ad9(a)betola.de> NNTP error for test(a)grenzland.club Traceback (most recent call last): File "/usr/lib/python3/dist-packages/mailman/runners/nntp.py", line 94, in _dispose conn.post(fp) ~~~~~~~~~^^^^ File "/usr/lib/python3/dist-packages/nntplib/__init__.py", line 916, in post return self._post('POST', data) ~~~~~~~~~~^^^^^^^^^^^^^^ File "/usr/lib/python3/dist-packages/nntplib/__init__.py", line 909, in _post return self._getresp() ~~~~~~~~~~~~~^^ File "/usr/lib/python3/dist-packages/nntplib/__init__.py", line 492, in _getresp raise NNTPTemporaryError(resp) nntplib.NNTPTemporaryError: 441 Can't set system Injection-Info header field

5 11

LIST OWNER
by Steven Heisler Feb. 26, 2026

Feb. 26, 2026

Has anyone had an issue with emails sent to a list owner not going through? i.e.* ListName-OWNER(a)domain.com <ListName-OWNER(a)domain.com>* Steven Heisler

2 1

Weird emails
by Paul Tomblin Feb. 26, 2026

Feb. 26, 2026

I've got my server set up correctly (I hope) and on an https connection, and I *think* I've got it set up so mailman-web will only respond on localhost:8000, but I occasionally get a flood of emails like this: > Internal Server Error: /admin/login/ > > DoesNotExist at /admin/login/ > Site matching query does not exist. Followed by a bunch of Django stuff, followed by > HTTP__X__CLIENT_IP = '127.0.0.1' > HTTP__X__FORWARDED_FOR = '127.0.0.1, 185.177.72.38' > HTTP__X__FORWARDED_HOST = '96.126.110.20' > HTTP__X__FORWARDED_SERVER = 'list.xcski.com' > HTTP__X__FORWARED = '127.0.0.1' > HTTP__X__HOST = '127.0.0.1' > HTTP__X__ORIGINATING_IP = '127.0.0.1' > HTTP__X__REAL_IP = '127.0.0.1' > PATH_INFO = '/admin/login/' > QUERY_STRING = 'next=/admin/' > REMOTE_ADDR = '127.0.0.1' The HTTP_X_FORWARDED_FOR was a clue where it was coming from, and grepping through my apache access logs shows a script kiddie at 185.177.72.38 hammering a miliion urls, 99% of them 404s. Is there any way the code could just return a 403 or 418 instead of getting a python error? -- Paul Tomblin

2 1

Documentation errors
by Paul Tomblin Feb. 23, 2026

Feb. 23, 2026

On the documentation about migration at https://docs.mailman3.org/en/latest/migration.html, there are two commands that start `python manage.py hyper kitty_import|update_index_on_list`, but there is no manage.py installed if you install Mailman and Mailman web following the instructions. Instead, I was able to run them using `mailman-web hyperkitty_import|update_index_one_list` instead. What is the correct method for reporting these errors?

2 1

Reason for Shunting
by Brian Carpenter Feb. 23, 2026

Feb. 23, 2026

Is there a way to determine why a message keeps ending up in the shunt queue? -- Brian Carpenter Harmonylists.com Emwd.com

3 5

Can't import from Mailman 2.1
by Paul Tomblin Feb. 23, 2026

Feb. 23, 2026

I set up a new Mailman site using 3.3.10, and copied over my files from my old mailman site (using 2.1.34). I created a new domain, and a new list, and tried to import the settings from the old pickle file using mailman import21 pt-test(a)browncroftna.org /var/tmp/var.lib.mailman/lists/pt-test/config.pck (in the virtual environment shell) but I get the following error ``` File "/opt/mailman/venv/lib/python3.13/site-packages/mailman/utilities/importer.py", line 512, in import_config_pck default_value = getUtility(ITemplateLoader).get(newvar, mlist) File "/opt/mailman/venv/lib/python3.13/site-packages/mailman/model/template.py", line 211, in get path, fp = find(default_uri, mlist, code) ~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/mailman/venv/lib/python3.13/site-packages/mailman/utilities/i18n.py", line 157, in find for search_path in raw_search_order: ^^^^^^^^^^^^^^^^ File "/opt/mailman/venv/lib/python3.13/site-packages/mailman/utilities/i18n.py", line 117, in search templates_dir = str(resources.enter_context( ~~~~~~~~~~~~~~~~~~~~~~~^ files('mailman').joinpath('templates'))) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3.13/contextlib.py", line 528, in enter_context raise TypeError(f"'{cls.__module__}.{cls.__qualname__}' object does " f"not support the context manager protocol") from None TypeError: 'pathlib._local.PosixPath' object does not support the context manager protocol ``` All I can find on Google is a suggestion that I have a non-empty `bounce_info`, but `dumpdb` shows it as empty.

2 2

Customizing Postorios web templates
by Stefan Bethke Feb. 23, 2026

Feb. 23, 2026

Hi, I have two list servers that I would like customize the web pages for, specifically I need to add some legal information to the footer, and I might want to apply some light branding to the site. I can't find any hints on how to do that, maybe I'm looking in the wrong place? If Postorious does not currently allow that outright, it seems I would need to fork mailman/postorious, replace templates like https://gitlab.com/mailman/postorius/-/blob/master/src/postorius/templates/…, and build the package myself. Is this assessment correct? If so, would there be interest in adding a feature to define some blocks that can be overridden more easily, especially during deployment and without having to build custom Python packages? Stefan -- Stefan Bethke <stb(a)lassitu.de> Fon +49 175 3288861

2 3

Digestion debugging
by John Price Feb. 21, 2026

Feb. 21, 2026

I'm having trouble getting digests to work. When I try to manually send one, it does nothing, and then the digest gets deleted (I guess?). I would love it if the documentation explained a bit more how the process works. How are the files gathered? What file can I backup and later restore if I'm debugging it? Also, how are the digest issue and volume numbers work? Is there any way to control that? Since I've been running digests for decades, can I set the volume and issue to what I want so that the numbering continues from where the other installation left off? Thanks, John -- Why do they lock gas station bathrooms? Are they afraid someone will clean them? Have a great day and don't forget to laugh! http://www.gcfl.net (The Good, Clean Funnies List): Good, clean daily funnies you can safely tell your Mom!

3 2

Error After Posted Message in Archive
by msok＠lalawlibrary.org Feb. 21, 2026

Feb. 21, 2026

Hi All, After I started a new threat and posted message, I received an error. Where should I take a look into this issue? Thanks, Marin

2 1

Try to Implement Template for The message sent to subscribers when a subscription confirmation is required
by msok＠lalawlibrary.org Feb. 20, 2026

Feb. 20, 2026

My NGINX configure redirect for HTTP to HTTPS. For the domain below, mailman.example.com = my actual domain -NGINX config server { # EXTERNAL: Redirects all port 80 traffic to HTTPS listen 80 default_server; listen [::]:80 default_server; # server_name mailman.example.com; server_name mailman.example.com; # no issue for accessing from outside, it will redirect to https return 301 https://$host$request_uri; # Redirect http to https server_tokens off; } # INTERNAL: Listens ONLY on 127.0.0.1 to handle local HTTP requests server { listen 127.0.0.1:80; server_name localhost; location / { include uwsgi_params; uwsgi_pass unix:/run/mailman3-web/uwsgi.sock; uwsgi_param HTTP_HOST $host; } location /mailman3/static { alias /var/lib/mailman3/web/static; } location /mailman3/static/favicon.ico { alias /var/lib/mailman3/web/static/postorius/img/favicon.ico; } -The URL syntax https://mailman.example.com/mailman3/lists/list-id/confirm/?token=$token -The error message when tried to add subscriber HTTP Error 400: HTTPSConnectionPool(host='localhost', port=443): Max retries exceeded with url: /postorius/api/templates/list/list-id/list:user:action:subscribe (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1029)'))) Please help! Thanks, Marin

4 6

Mailman3 Queues Documentation
by msok＠lalawlibrary.org Feb. 20, 2026

Feb. 20, 2026

Hi Everyone, I'm looking for a documentation for the explanation about the Queues in Mailman3. By the way, I'm new, I just got 5 shunt under Queues. Mailman Core Version: GNU Mailman 3.3.10 (Tom Sawyer) Mailman Core API Version: 3.1 Mailman Core Python Version: 3.13.5 (main, Jun 25 2025, 18:55:22) [GCC 14.2.0] Queues archive 0 bad 0 bounces 0 command 0 digest 0 in 0 nntp 0 out 0 pipeline 0 retry 0 shunt 5 virgin 0 Thanks, Marin

3 4

Confirmation emails aren't sent to users.
by Ibiam Chihurumnaya Feb. 18, 2026

Feb. 18, 2026

Confirmation emails aren't being sent to users and there's nothing in the logs that make it obvious what's happening. ERROR 2026-02-12 14:15:11,250 1985547 django.request Internal Server Error: /archives/list/soas(a)lists.sugarlabs.org/thread/CVAUPR7L6AYTNZXIWHQ263A6ZJUROTRC/ 233825 Traceback (most recent call last): 233826 File "/opt/mailman/venv/lib/python3.10/site-packages/django/core/handlers/exception.py", line 55, in inner 233827 response = get_response(request) 233828 File "/opt/mailman/venv/lib/python3.10/site-packages/django/core/handlers/base.py", line 197, in _get_response 233829 response = wrapped_callback(request, *callback_args, **callback_kwargs) 233830 File "/opt/mailman/venv/lib/python3.10/site-packages/hyperkitty/lib/view_helpers.py", line 137, in inner 233831 return func(request, *args, **kwargs) 233832 File "/opt/mailman/venv/lib/python3.10/site-packages/hyperkitty/views/thread.py", line 238, in thread_index 233833 return render(request, "hyperkitty/thread.html", context=context) 233834 File "/opt/mailman/venv/lib/python3.10/site-packages/django/shortcuts.py", line 25, in render 233835 content = loader.render_to_string(template_name, context, request, using=using) 233836 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/loader.py", line 62, in render_to_string 233837 return template.render(context, request) 233838 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/backends/django.py", line 107, in render 233839 return self.template.render(context) 233840 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 172, in render 233841 return self._render(context) 233842 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 164, in _render 233843 return self.nodelist.render(context) 233844 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 1018, in render 233845 return SafeString("".join([node.render_annotated(context) for node in self])) 233846 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 1018, in <listcomp> 233847 return SafeString("".join([node.render_annotated(context) for node in self])) 233848 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 979, in render_annotated 233849 return self.render(context) 233850 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/loader_tags.py", line 159, in render 233851 return compiled_parent._render(context) 233852 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 164, in _render 233853 return self.nodelist.render(context) 233854 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 1018, in render 233855 return SafeString("".join([node.render_annotated(context) for node in self])) 233856 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 1018, in <listcomp> 233857 return SafeString("".join([node.render_annotated(context) for node in self])) 233858 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 979, in render_annotated 233859 return self.render(context) 233860 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/loader_tags.py", line 65, in render 233861 result = block.nodelist.render(context) 233862 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 1018, in render 233863 return SafeString("".join([node.render_annotated(context) for node in self])) 233864 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 1018, in <listcomp> 233865 return SafeString("".join([node.render_annotated(context) for node in self])) 233866 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 979, in render_annotated 233867 return self.render(context) 233868 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/loader_tags.py", line 210, in render 233869 return template.render(context) 233870 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 174, in render 233871 return self._render(context) 233872 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 164, in _render 233873 return self.nodelist.render(context) 233874 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 1018, in render 233875 return SafeString("".join([node.render_annotated(context) for node in self])) 233876 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 1018, in <listcomp> 233877 return SafeString("".join([node.render_annotated(context) for node in self])) 233878 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 979, in render_annotated 233879 return self.render(context) 233880 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 1077, in render 233881 output = self.filter_expression.resolve(context) 233882 File "/opt/mailman/venv/lib/python3.10/site-packages/django/template/base.py", line 750, in resolve 233883 new_obj = func(obj, *arg_vals) 233884 File "/opt/mailman/venv/lib/python3.10/site-packages/hyperkitty/templatetags/decorate.py", line 42, in render 233885 return mark_safe(text_renderer(content)) 233886 File "/opt/mailman/venv/lib/python3.10/site-packages/mistune/markdown.py", line 120, in __call__ 233887 return self.parse(s)[0] 233888 File "/opt/mailman/venv/lib/python3.10/site-packages/mistune/markdown.py", line 93, in parse 233889 self.block.parse(state) 233890 File "/opt/mailman/venv/lib/python3.10/site-packages/mistune/block_parser.py", line 458, in parse 233891 end_pos2 = self.parse_method(m, state) 233892 File "/opt/mailman/venv/lib/python3.10/site-packages/mistune/core.py", line 216, in parse_method 233893 return func(m, state) 233894 File "/opt/mailman/venv/lib/python3.10/site-packages/mistune/block_parser.py", line 369, in parse_block_quote 233895 text, end_pos = self.extract_block_quote(m, state) 233896 File "/opt/mailman/venv/lib/python3.10/site-packages/mistune/block_parser.py", line 346, in extract_block_quote 233897 end_pos = self.parse_method(m4, state) 233898 File "/opt/mailman/venv/lib/python3.10/site-packages/mistune/core.py", line 216, in parse_method 233899 return func(m, state) 233900 File "/opt/mailman/venv/lib/python3.10/site-packages/mistune/block_parser.py", line 388, in parse_list 233901 return parse_list(self, m, state) 233902 File "/opt/mailman/venv/lib/python3.10/site-packages/mistune/list_parser.py", line 64, in parse_list 233903 groups = _parse_list_item(block, bullet, groups, token, state, rules) 233904 File "/opt/mailman/venv/lib/python3.10/site-packages/mistune/list_parser.py", line 178, in _parse_list_item 233905 block.parse(child, rules) 233906 File "/opt/mailman/venv/lib/python3.10/site-packages/mistune/block_parser.py", line 458, in parse 233907 end_pos2 = self.parse_method(m, state) 233908 File "/opt/mailman/venv/lib/python3.10/site-packages/mistune/core.py", line 214, in parse_method 233909 assert lastgroup 233910 AssertionError This is the last error in mailmanweb.log, the errors before that are similar.

3 19

Receiving Email from ListName-bounce@Domain for Unsubcribe
by msok＠lalawlibrary.org Feb. 16, 2026

Feb. 16, 2026

Hello, On my new MM3 that I just installed, I testing unsubscribe user from mailing list. User received email for the unsubscribe in subject line as 'You have been unsubscribed from the Test1 mailing list' with email address 'test1-bounces@domain'. It should receive from test1-unsubscribe@domain instead. Where should I look into this? or configure it. Thanks, Marin

4 5

Reply to Confirmation Email During Subscribe Process Receiving ListName-Bounce@Domain
by msok＠lalawlibrary.org Feb. 16, 2026

Feb. 16, 2026

I'm new to MM3. I just finished install it. I setup a test list with default settings as test1@domain. I added a user to the list via Mass Subscription with Pre confirm check and Pre approved check. Inside the user inbox in GMail account received email from address test1-confirm@domain ( I added this erp_confirm_format: $address to [mta] in /etc/mailman3/mailman.cfg) with Your confirmation is needed to join the test1@domain mailing list. I replied to the email and I received another email as test1-bounce@domain. I went to my mailing test1@domain. I found a user that I tried to add list in 'Subscription request' under 'Pending Confirmation'. Could you help me to troubleshooting on this? Why I received a list-bounce@domain instead of successfully added or something. Thanks, Marin

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Internal Server Error: /mailman3/postorius/lists/.../held_messages - humanize: where to put?
by Flo Feb. 16, 2026

Feb. 16, 2026

Hi, I have setup in Debian Trixie mailman3-full and came that far, that I have created a mailing list. I can sent emails to the members. However when I send from an email which is non-member the message is held. If I want to accept this message as list admin, I get: `An error occurred while processing your request.` And I get an email: `Internal Server Error: /mailman3/postorius/.../held_messages TemplateSyntaxError at /postorius/lists/.../held_messages 'humanize' is not a registered tag library. Must be one of: account admin_list admin_modify admin_urls allauth bootstrap_tags cache compress d_gravatar date_helpers debugger_tags decorate gravatar highlight highlighting hk_generic hk_haystack i18n indent_text l10n log markdown membership_helpers more_like_this nav_helpers p_gravatar pagination postorius_helpers rest_framework socialaccount static syntax_color tz widont Request Method: GET Request URL: https://.../mailman3/postorius/lists/.../held_messages Django Version: 4.2.23 Python Executable: /usr/bin/uwsgi-core Python Version: 3.13.5 Python Path: ['.', '', '/usr/lib/python313.zip', '/usr/lib/python3.13', '/usr/lib/python3.13/lib-dynload', '/usr/local/lib/python3.13/dist-packages', '/usr/lib/python3/dist-packages', '/usr/lib/python3/dist-packages/setuptools/_vendor'] . . .` humanize is in the INSTALLED_APPS section in /usr/share/mailman3-web/settings.py. In this file I I configured Django. However it's not in the Python path as written in the error email above. So maybe I have to find a different settings file. Can anyone advise me where I can find the error I have in my configuration? Thanks in advance. Flo

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Inaccessible User Profile
by awingnut Feb. 14, 2026

Feb. 14, 2026

I have a long time user that cannot access their profile. When I click on users/members then that user as superuser, I get this error. Page not found This page either doesn't exist, or it moved somewhere else. When I click that uers manage button, the page comes up but it says there are no subscriptions. This user was subscribed as of couple of days ago. Can this be fixed via admin functions?

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Issues with Mail delivery after Mailman 3 installation
by Ibiam Chihurumnaya Feb. 12, 2026

Feb. 12, 2026

I finished installing mailman3, setup lmtp and smtp for mail delivery and I followed the instructions on the mailman 3 installation page. Mail delivery doesn't work and the logs show this; Jan 31 12:53:53 lists postfix/lmtp[4131588]: 3B8121A89BD: to=<systems(a)lists.sugarlabs.org>, relay=127.0.0.1[127.0.0.1]:24, delay=11119, delays=11072/0.01/0.01/47, dsn=4.3.0, status=deferred (host 127.0.0.1[127.0.0.1] said: 451 4.3.0 <systems(a)lists.sugarlabs.org> Temporary internal error (in reply to RCPT TO command)) 106029 Jan 31 12:53:53 lists postfix/lmtp[4131587]: 052BB1A8975: to=<mailman(a)lists.sugarlabs.org>, orig_to=<mailman>, relay=localhost[127.0.0.1]:24, delay=1432, delays=1385/0.02/0.01/47, dsn=4.3.0, status=deferred (host localhost[127.0.0.1] said: 451 4.3.0 <mailman(a)lists.sugarlabs.org> Temporary internal error (in reply to RCPT TO command)) Jan 31 12:53:53 lists dovecot: lmtp(4131586): Disconnect from 127.0.0.1: Logged out (state=READY) Jan 31 12:53:53 lists postfix/local[4131582]: F2DB61A8952: passing <mailman(a)lists.sugarlabs.org> to transport=lmtp Jan 31 12:53:53 lists dovecot: lmtp(4131590): Disconnect from 127.0.0.1: Logged out (state=READY) Jan 31 12:53:53 lists dovecot: lmtp(4131589): Disconnect from 127.0.0.1: Logged out (state=READY) Jan 31 12:53:53 lists postfix/local[4131584]: D172A1A8A0E: passing <mailman(a)lists.sugarlabs.org> to transport=lmtp Jan 31 12:53:53 lists dovecot: lmtp(4131586): Connect from 127.0.0.1 Jan 31 12:53:53 lists dovecot: lmtp(4131589): Connect from 127.0.0.1 Jan 31 12:53:54 lists postfix/lmtp[4128841]: connect to localhost[::1]:24: Connection refused Jan 31 12:53:54 lists postfix/lmtp[4128840]: connect to localhost[::1]:24: Connection refused Jan 31 12:53:54 lists postfix/lmtp[4128841]: 348981A8A2A: to=<mailman(a)lists.sugarlabs.org>, orig_to=<mailman>, relay=none, delay=113, delays=0.04/52/61/0, dsn=4.4.1, status=deferred (connect to localhost[::1]:24: Connection refused) Jan 31 12:53:54 lists postfix/lmtp[4128840]: 5382D1A8A27: to=<mailman(a)lists.sugarlabs.org>, orig_to=<mailman>, relay=none, delay=173, delays=0.02/111/61/0, dsn=4.4.1, status=deferred (connect to localhost[::1]:24: Connection refused) Jan 31 12:53:56 lists dovecot: lmtp(4128842): Disconnect from 127.0.0.1: Connection closed (state=READY) Jan 31 12:53:56 lists dovecot: lmtp(4127392): Disconnect from 127.0.0.1: Connection closed (state=READY) Jan 31 12:54:02 lists postfix/pickup[4131579]: 1D3E71A8A1C: uid=1005 from=<mailman> Jan 31 12:54:02 lists postfix/cleanup[4131852]: 1D3E71A8A1C: message-id=<20260131205402.1D3E71A8A1C(a)lists.sugarlabs.org> Jan 31 12:54:02 lists postfix/qmgr[4131580]: 1D3E71A8A1C: from=<mailman(a)lists.sugarlabs.org>, size=919, nrcpt=1 (queue active) Jan 31 12:54:53 lists dovecot: auth: Fatal: passdb passwd-file: Missing args Jan 31 12:54:53 lists dovecot: master: Error: service(auth): command startup failed, throttling for 60.000 secs Jan 31 12:54:53 lists dovecot: lmtp(mailman(a)lists.sugarlabs.org)<4131586><qMl1NuFrfmkCCz8AOj1W/w>: Error: auth-master: userdb lookup(mailman(a)lists.sugarlabs.org): Disconnected unexpectedly Jan 31 12:54:53 lists dovecot: lmtp(4131586): Error: lmtp-server: conn 127.0.0.1:56008 [2]: rcpt mailman(a)lists.sugarlabs.org: Failed to lookup user mailman(a)lists.sugarlabs.org: Internal error occurred. Refer to server log for more information. Jan 31 12:54:53 lists postfix/lmtp[4131585]: F2DB61A8952: host localhost[127.0.0.1] said: 451 4.3.0 <mailman(a)lists.sugarlabs.org> Temporary internal error (in reply to RCPT TO command) Jan 31 12:54:53 lists dovecot: lmtp(mailman(a)lists.sugarlabs.org)<4131589><kJd+NuFrfmkFCz8AOj1W/w>: Error: auth-master: userdb lookup(mailman(a)lists.sugarlabs.org): Disconnected unexpectedly Jan 31 12:54:53 lists dovecot: lmtp(4131589): Error: lmtp-server: conn 127.0.0.1:56014 [2]: rcpt mailman(a)lists.sugarlabs.org: Failed to lookup user mailman(a)lists.sugarlabs.org: Internal error occurred. Refer to server log for more information. Jan 31 12:54:53 lists postfix/lmtp[4131588]: D172A1A8A0E: host localhost[127.0.0.1] said: 451 4.3.0 <mailman(a)lists.sugarlabs.org> Temporary internal error (in reply to RCPT TO command) Jan 31 12:54:53 lists postfix/lmtp[4131585]: connect to localhost[::1]:24: Connection refused Jan 31 12:54:53 lists postfix/lmtp[4131588]: connect to localhost[::1]:24: Connection refused Jan 31 12:54:53 lists postfix/lmtp[4131585]: F2DB61A8952: to=<mailman(a)lists.sugarlabs.org>, orig_to=<mailman>, relay=none, delay=1492, delays=1385/47/60/0, dsn=4.4.1, status=deferred (connect to localhost[::1]:24: Connection refused) Jan 31 12:54:53 lists postfix/lmtp[4131588]: D172A1A8A0E: to=<mailman(a)lists.sugarlabs.org>, orig_to=<mailman>, relay=none, delay=591, delays=484/47/60/0, dsn=4.4.1, status=deferred (connect to localhost[::1]:24: Connection refused) Jan 31 12:54:53 lists postfix/local[4131582]: D92311A8A17: passing <mailman(a)lists.sugarlabs.org> to transport=lmtp Jan 31 12:54:53 lists postfix/local[4131584]: D52231A8A1A: passing <mailman(a)lists.sugarlabs.org> to transport=lmtp Jan 31 12:55:02 lists postfix/pickup[4131579]: 019161A8A2C: uid=1005 from=<mailman> Jan 31 12:55:02 lists postfix/cleanup[4131852]: 019161A8A2C: message-id=<20260131205502.019161A8A2C(a)lists.sugarlabs.org> Jan 31 12:55:02 lists postfix/qmgr[4131580]: 348981A8A2A: from=<mailman(a)lists.sugarlabs.org>, size=919, nrcpt=1 (queue active) Jan 31 12:55:02 lists postfix/qmgr[4131580]: 019161A8A2C: from=<mailman(a)lists.sugarlabs.org>, size=919, nrcpt=1 (queue active) Jan 31 12:55:02 lists postfix/qmgr[4131580]: 5382D1A8A27: from=<mailman(a)lists.sugarlabs.org>, size=919, nrcpt=1 (queue active) Jan 31 12:55:18 lists postfix/smtpd[4132212]: fatal: open dictionary: expecting "type:name" form instead of "dovecot" I setup lmtp with dovecot, and I have this in dovecot.conf; passdb passwd-file { driver = passwd-file } I also have these set in postfix main.cf; lmtp_sender_dependent_authentication = yes lmtp_sasl_auth_enable = yes lmtp_sasl_password_maps = hash:path_to_passwd_file I'm wondering if I need to disable sasl because I set dovecot not to use ssl because lmtp is only running internally.

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Mailman and Postfix Conflicting Information
by dap1＠bellsouth.net Feb. 9, 2026

Feb. 9, 2026

I've been going in circles between mailman and postfix trying to get things working. My current condition is that either mailman is putting incoming mail in the bit bucket or postfix is not sending incoming mail to mailman. According to the postfix forum my mailman configuration is messed up but it was auto generated by the installer. Supposedly these entries should not be in /opt/mailman/mm/var/data/postfix_lmtp or rather transport_maps and/or local_recipient_maps. # Aliases which are visible only in the @gmail.com domain. lllllllllll(a)gmail.com lmtp:[127.0.0.1]:8024 lllllllllll-bounces(a)gmail.com lmtp:[127.0.0.1]:8024 lllllllllll-confirm(a)gmail.com lmtp:[127.0.0.1]:8024 lllllllllll-join(a)gmail.com lmtp:[127.0.0.1]:8024 lllllllllll-leave(a)gmail.com lmtp:[127.0.0.1]:8024 lllllllllll-owner(a)gmail.com lmtp:[127.0.0.1]:8024 lllllllllll-request(a)gmail.com lmtp:[127.0.0.1]:8024 lllllllllll-subscribe(a)gmail.com lmtp:[127.0.0.1]:8024 lllllllllll-unsubscribe(a)gmail.com lmtp:[127.0.0.1]:8024 And relay_domains shouldn't have this entry either in /opt/mailman/mm/var/data/postfix_domains in relay_domains: gmail.com gmail.com Clearly my postfix configuration is messed up but since this was all auto generated I don't know what to do.

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Re: Expire non-members
by Mark Sapiro Feb. 9, 2026

Feb. 9, 2026

On 2/8/26 18:36, John Price wrote: > I notice that a lot of the non-members (I didn't look at all ~230) don't > seem to be in the master user list. Maybe until they confirm the user > record is not created yet? If the address was just added from a nonmember post, it won't have a user record. As I said before, there is no pending confirmation for the nonmember. The address has been added as a nonmember and that's it. They won't be added as a member unless they request subscription at which point they will have to confirm if the list's subscription policy requires it. > Anyway, I'd love a subscribe timestamp so I could calculate how long it > has been, but I can rig something up with a daily cron job and a simple > DB of emails and the date it noticed them on the non-members list and > delete them after a few days. Thanks for the info! For the nonmember, nonmember.address.registered_on is probably the timestamp you are looking for. -- Mark Sapiro <mark(a)msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

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Re: Expire non-members
by Stephen J. Turnbull Feb. 9, 2026

Feb. 9, 2026

John Price writes: > I notice that a lot of the non-members (I didn't look at all ~230) > don't seem to be in the master user list. Maybe until they confirm > the user record is not created yet? The User object is created. User records don't get confirmed, the addresses that are attached to them get confirmed. > Anyway, I'd love a subscribe timestamp so I could calculate how > long it has been Some of the object records have creation timestamps in the SQL database, but they are not exposed in the web UI. They're not very interesting to human beings and take up a lot of UI space, even if you only display the date. Also, I'm not sure whether the core database records timestamps, although I'm pretty sure Django does for both creation and confirmation. -- GNU Mailman consultant (installation, migration, customization) Sirius Open Source https://www.siriusopensource.com/ Software systems consulting in Europe, North America, and Japan

1 0

Expire non-members
by John Price Feb. 8, 2026

Feb. 8, 2026

Is there a way to expire and delete (in mailman3 or via cron) non-members? I've been running mailman3 for a couple of weeks now on a few mailing lists, and on my big list specifically I'm seeing lots of spam to the gcfl-join(a)gcfl.net email alias, which creates these non-members, but they never confirm their subscription, so they remain in non-member limbo. Thank you, John -- Is it my imagination, or do buffalo wings taste like chicken? Have a great day and don't forget to laugh! http://www.gcfl.net (The Good, Clean Funnies List): Good, clean daily funnies you can safely tell your Mom!

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