Search results for "Cannot connect to SMTP server"

[MM3-users] Re: Mailman3 not delivering list mail

by gordon＠dickens.com

Hi Mark, I have errors like these in the mailman3 logs but they occurred earlier (that is prior to my attempting to post messages to the new mailman3 mailing list and which are not echoed to list members): Oct 01 11:08:22 2020 (7895) Skipping and preserving unparseable message: 1601564901.8696995+c2b86623e2dcc8e9800b10ca2bcf8b82e8d8d662 Oct 01 11:08:23 2020 (7895) Uncaught runner exception: [Errno 13] Permission denied: '/var/lib/mailman3/queue/virgin/1601564902.28165 63+16bd684dfb18c6175f3e7b0b11312cb203dc9c89.pck' Oct 01 11:08:23 2020 (7895) Traceback (most recent call last): File "/usr/lib/python3/dist-packages/mailman/core/runner.py", line 158, in _one_iteration msg, msgdata = self.switchboard.dequeue(filebase) File "/usr/lib/python3/dist-packages/mailman/core/switchboard.py", line 150, in dequeue with open(filename, 'rb') as fp: PermissionError: [Errno 13] Permission denied: '/var/lib/mailman3/queue/virgin/1601564902.2816563+16bd684dfb18c6175f3e7b0b11312cb203dc9c89.pck' The above errors occurred prior to the time that I attempted to send to the mailman3 list. However, here is what I see in the logs immediately after I sent a message to the list and which was not then echoed to list members: Oct 01 11:51:03 2020 (7888) ACCEPT: <f92eeaad-245c-124b-dd09-b31a6b3c5686(a)dickens.com> Oct 01 11:51:07 2020 (7885) HyperKitty archived message <f92eeaad-245c-124b-dd09-b31a6b3c5686(a)dickens.com> to https://georgiajets.org /mailman3/hyperkitty/list/members(a)georgiajets.org/message/NUOU6UQ6DSHSK2WKNVZFIN5AELK5EYBU/ Oct 01 11:51:07 2020 (7891) Cannot connect to SMTP server localhost on port 25 Please note the message about the SMTP server not being able to connect to local host on port 25. Please let me know what you think is wrong and how to fix it. Thanks, Gordon

4 years, 1 month

[MM3-users] Re: Uncaught runner exception

by Wolfgang Bock

Hello Mark, thanks for your hint. Postfix is runnig as mta on my machine. I tested port 25 with swaks ->mail to user on server: localhost port 25 -> everything fine Mailman is configured with localhost for incoming and outgoing mails. After stopping mailman3, deleting all files in the queue directories, restart mailman3 I sent a test-mail /var/log/mailman3/mailman.log Apr 07 12:08:23 2020 (28198) Master started Apr 07 12:08:24 2020 (28206) out runner started. Apr 07 12:08:24 2020 (28202) command runner started. Apr 07 12:08:24 2020 (28203) in runner started. Apr 07 12:08:24 2020 (28200) archive runner started. Apr 07 12:08:24 2020 (28201) bounces runner started. Apr 07 12:08:24 2020 (28210) retry runner started. Apr 07 12:08:25 2020 (28208) rest runner started. Apr 07 12:08:25 2020 (28212) digest runner started. Apr 07 12:08:25 2020 (28205) nntp runner started. Apr 07 12:08:26 2020 (28211) virgin runner started. Apr 07 12:08:26 2020 (28207) pipeline runner started. Apr 07 12:08:26 2020 (28204) lmtp runner started. Apr 07 12:09:19 2020 (28203) ACCEPT: <000f01d60cc4$96c9a8d0$c45cfa70$@[domain]> Apr 07 12:09:21 2020 (28206) Cannot connect to SMTP server localhost on port 25 I have no idea what to do for solving my problems. Regards from Hamburg Wolfgang -----Ursprüngliche Nachricht----- Von: Mark Sapiro <mark(a)msapiro.net> Gesendet: Montag, 6. April 2020 23:50 An: Wolfgang Bock <mailinglisten(a)wbock.de> Betreff: Re: [MM3-users] Re: Uncaught runner exception On 4/6/20 2:44 PM, Wolfgang Bock via Mailman-users wrote: > Thank you Steven for your reply! > > I Set smtp_server to port 25 and got a "Cannot connect ro SMTP Server > on port 25", the former error message didn't show again. > > As I see port 25 is reseved for postfix. So I have to fiddle out how > mailman3 could also use this port for sending mails out. .... You need an MTA for Mailman to deliver its mail to. Normally this will be Postfix, sendmail, Exim, etc running on localhost and listening on port 25. Do you have such an MTA running on localhost? Note, Mailman does not directly send mail to end recipients. It only delivers mail to an outgoing MTA. -- Mark Sapiro <mark(a)msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

4 years, 7 months

[MM3-users] Re: mail stuck in "out" queue

by Mark Sapiro

On 6/13/20 6:30 PM, Kareem Zidane wrote: > Hi Mark, > > Sorry to bother you! Just wanted to loop back on the above to see if you might have any thoughts on that by chance? I'm sorry, I thought I had replied, but clearly I hadn't. So as I understand it, you have multiple lists in this Mailman 3 installation, and only one list has this issue, and mail to this list gets archived, but not delivered but is queued in var/queue/out and remains there. This is hard to understand. When Mailman's out runner processes its queue, it processes messages in chronological order without regard to which list they are from, so it must be at least attempting to deliver these messages, and somehow failing and requeueing them. I do see this Jun 09 17:36:31 2020 (82) Cannot connect to SMTP server postfix on port 25 in the log excerpt you posted. What's in Mailman's smtp.log and the postfix mail.log that might be related to this? It's hard to understand how an MTA connect issue could affect only one list. If it is accepting the connict and then dropping the connection for too many invalid RCPT addresses, that's a possibility. -- Mark Sapiro <mark(a)msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

4 years, 5 months

[MM3-users] Re: including a template failed

by Mark Sapiro

On 9/23/20 3:03 PM, Wolfgang Bock via Mailman-users wrote: > > Dear Mark, > > Q: Can you get > https://webmail.domain-02.de/mailman3/postorius/api/templates/list/mylist.li > sts.domain-03.de/list:member:regular:footer on the Mailman machine? > > A: No > > Q: What is your setting for POSTORIUS_TEMPLATE_BASE_URL? > > A: > was: POSTORIUS_TEMPLATE_BASE_URL = 'http://localhost/mailman3/' > > Changed it to: POSTORIUS_TEMPLATE_BASE_URL = 'https://localhost/mailman3/' Can you get https://localhost/mailman3/postorius/api/templates/list/mylist.lists.domain… on the Mailman machine? > Now another problem occurs: > > Sep 23 22:51:34 2020 (13492) Cannot connect to SMTP server localhost on port > 25 > HTTPSConnectionPool ... 'localhost' doesn't match either of > 'blog.domain-04.de', 'lists.domain-04.de', 'mail.domain-04.de', > 'domain-04.de', 'www.domain-04.de'"))) The 'HTTPSConnectionPool' message has nothing to do with the 'Cannot connect' issue. > Port 25 entry results from the manual regarding the postfix configuration: > > https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/docs/mta.ht > ml > > e.g.: > [mta] > incoming: mailman.mta.postfix.LMTP > outgoing: mailman.mta.deliver.deliver > lmtp_host: mail.example.com > lmtp_port: 8024 > smtp_host: mail.example.com > smtp_port: 25 And I wonder why it's trying to connect to localhost when smtp_host is mail.example.com. -- Mark Sapiro <mark(a)msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

4 years, 2 months

[MM3-users] Re: signup / registration error - permissions and cert chains

by Victoriano Giralt

El viernes, 31 de diciembre de 2021 1:48:38 (CET) David Newman escribió: > I'd like for regular (non-admin) list subscribers to be able to manage > their subscription preferences and view list archives. That's a good way to go :-) My response is more of a (very) old sysadmin and Django user (since 2008) hunch that a proper one based on code and documentation review, but I've been trying to contribute several times and always (super) Mark Sapiro beats me :-) > If I'm reading the error correctly, this is related to an inability to > verify the cert chain. The /etc/mailman3/settings.py file points to the > same cert and key files used by Nginx, Postfix, and Dovecot. You are right in your diagnose but not in your interpretation (see my comment below inside the traceback). It is certificate related, but not for server TLS, but for CLIENT authentication. > EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend' > EMAIL_HOST = 'localhost' > EMAIL_PORT = 25 > EMAIL_HOST_USER = 'dnewman(a)networktest.com' > EMAIL_HOST_PASSWORD = 'wouldnt-you-like-to-know' > EMAIL_USE_TLS = 'True' > EMAIL_SSL_CERTFILE = '/etc/ssl/certs/myhost.crt' > EMAIL_SSL_KEYFILE = '/etc/ssl/private/myhost.key' All these settings above are used for SENDING messages and, if I'm not mistaken, the SSL key and cert are used for authenticating the user sending the email. Actually, using TLS and SMTP Auth for localhost is a bit too much. I've been configuring SMTP servers since 1990 and my mail servers just accept mail form localhost, if they are broken into, the user and password have already been exposed :-) > But this might only be for email, not Postorius/Django. You are right (if I also am) > What additional configuration is needed to allow regular users to create > and manage their own accounts? I'd say that is more what is not needed (the SMTP TLS authentication) I'll remove the "noise". These are the tell tale lines: > "/opt/mailman/venv/lib/python3.9/site-packages/django/core/mail/backends/smt > p.py", line 67, in open > self.connection.starttls(keyfile=self.ssl_keyfile, > certfile=self.ssl_certfile) The SMTP Django backend is trying to connect to the mail server to send the Mailman account confirmation message and failing, probably because the user Django runs as cannot open the private key (which is a very sensible thing if that private key is the one used for the web facing TLS certificate, I can tell you how bad in private or search for my name, wasd, apache and VMS ;-)) That certificate is not needed for sending email from Django, and, as I said, not even SMTP Auth for sending via localhost. Actually, doing SMTP Auth on port 25 is not even recommended practice. Happy, healthy, safe and well ventilated New Year to all. -- Victoriano Giralt Innovation Director Digital Transformation Vicerectorate University of Malaga +34952131415 SPAIN ================================================================== Note: signature.asc is the electronic signature of present message A: Yes. > Q: Are you sure ? >> A: Because it reverses the logical flow of conversation. >>> Q: Why is top posting annoying in email ?

2 years, 10 months

[MM3-users] Mailman3 doesn't send Mails to users (Debian12 with Plesk)

by marcus＠mbautze.de

Hello, i already send this question to the plesk-forum but it seems that nobody there can help me :-( After updating from Debian 10 to 11 to 12, I now have mailman3 running on my server I then converted all lists from Mailman2 to Mailman3 following the instructions from mailman. I can access it via the web interface, manage everything etc. When I register on the web interface, I also receive the corresponding mails from Mailman (forgotten password...) Mails are also arriving, at least mails that are not allowed go into the mails to be approved. The problem, however, is that it does not send out any mails, nor do they appear in the archive. When I look in the Mailman-Log I find: May 16 01:44:55 2024 (6833) Cannot connect to SMTP server localhost on port 25 May 16 01:48:15 2024 (61252) error opening connection to nntp_host: localhost [Errno 111] Connection refused May 16 01:48:15 2024 (61252) NNTP error for list vereinsmitglieder(a)ludothek.de: [Errno 111] Connection refused The configuration of Mailman.cfg looks like this: incoming: mailman.mta.postfix.LMTP outgoing: mailman.mta.deliver.deliver smtp_host: localhost smtp_port: 25 smtp_user: smtp_pass: lmtp_host: 127.0.0.1 lmtp_port: 8024 In Mailman manuals I find hints that the transport routes have to be added to the Postfix-config. Doesn't Debian/Plesk do this automatically? Does anyone else have an idea what I need to change to get my mails out? I did the conversion from mailman2 to mailman3 with root because it didn't work with "sudo -u list "m, but the files stored in the file system all belong to list, so that shouldn't be the problem.

6 months

[MM3-users] Re: "Cannot connect to SMTP server localhost on port 25"

by Manos Pitsidianakis

Στις 2019-09-21 22:18, Mark Sapiro έγραψε: > On 9/21/19 1:00 PM, Manos Pitsidianakis wrote: >> >> Can I use a debugger to see exactly what happens in the runner? > > > You might be able to run the runner under pdb > <https://docs.python.org/3.2/library/pdb.html>. I think I found what's wrong: /usr/local/lib/python3.5/dist-packages/mailman/core/runner.py(134)run() -> filecnt = self._one_iteration() /usr/local/lib/python3.5/dist-packages/mailman/core/runner.py(173)_one_iteration() -> self._process_one_file(msg, msgdata) /usr/local/lib/python3.5/dist-packages/mailman/core/runner.py(266)_process_one_file() -> keepqueued = self._dispose(mlist, msg, msgdata) /usr/local/lib/python3.5/dist-packages/mailman/runners/outgoing.py(95)_dispose() -> self._func(mlist, msg, msgdata) /usr/local/lib/python3.5/dist-packages/mailman/mta/deliver.py(86)deliver() -> refused = agent.deliver(mlist, msg, msgdata) > /usr/local/lib/python3.5/dist-packages/mailman/mta/base.py(163)deliver() -> callback(mlist, message_copy, msgdata_copy) /usr/local/lib/python3.5/dist-packages/mailman/mta/decorating.py(32)decorate() -> decorator.process(mlist, msg, msgdata) /usr/local/lib/python3.5/dist-packages/mailman/handlers/decorate.py(264)process() -> process(mlist, msg, msgdata) /usr/local/lib/python3.5/dist-packages/mailman/handlers/decorate.py(89)process() -> footer = decorate('list:member:regular:footer', mlist, d) /usr/local/lib/python3.5/dist-packages/mailman/handlers/decorate.py(226)decorate() -> template = getUtility(ITemplateLoader).get(name, mlist, **extradict) /usr/local/lib/python3.5/dist-packages/mailman/model/template.py(188)get() -> name, lookup_context, **substitutions) /usr/local/lib/python3.5/dist-packages/mailman/database/transaction.py(85)wrapper() -> return function(args[0], config.db.store, *args[1:], **kws) /usr/local/lib/python3.5/dist-packages/mailman/model/template.py(109)get() -> contents = protocols.get(actual_uri, **auth) /usr/local/lib/python3.5/dist-packages/mailman/utilities/protocols.py(38)get() -> response = requests.get(url, timeout=REQUEST_TIMEOUT, **kws) /usr/lib/python3/dist-packages/requests/api.py(70)get() -> return request('get', url, params=params, **kwargs) /usr/lib/python3/dist-packages/requests/api.py(56)request() -> return session.request(method=method, url=url, **kwargs) /usr/lib/python3/dist-packages/requests/sessions.py(488)request() -> resp = self.send(prep, **send_kwargs) /usr/lib/python3/dist-packages/requests/sessions.py(609)send() -> r = adapter.send(request, **kwargs) /usr/lib/python3/dist-packages/requests/adapters.py(487)send() -> raise ConnectionError(e, request=request) requests.exceptions.ConnectionError: HTTPConnectionPool(host='localhost', port=8000): Max retries exceeded with url: /mailman3/api/templates/list/meli-announce.meli.delivery/list:member:regular:footer (Caused by NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x7f4f0495a358>: Failed to establish a new connection: [Errno 111] Connection refused',)) mailman3 tries to get the template I've set via the mailman suite interface but it assumes it is hosted locally: 'http://localhost:8000/mailman3/api/templates/list/meli-announce.meli.delive…' In my setup, they are separate machines. I can't find any way to change this in the configuration. Also, can't the same template be loaded from the master's localhost:8001 api? Haven't fiddled with python for some time, why is this exception catched by "except socket.error"? Is it a subclass of requests.exceptions.ConnectionError?

5 years, 2 months

[MM3-users] Re: Mailman3 doesn't send Mails to users (Debian12 with Plesk)

by Mark Sapiro

On 5/24/24 2:18 AM, marcus--- via Mailman-users wrote: > > The problem, however, is that it does not send out any mails, nor do they appear in the archive. > > When I look in the Mailman-Log I find: > > May 16 01:44:55 2024 (6833) Cannot connect to SMTP server localhost on port 25 This is a misleading error message. It can occur when Mailman's out runner can't read a template. You need to check ownership and permissions on mailman/templates in the code tree and Mailman's var/templates directory which probably has permissions errors from running inport21 as root. Also, if you've set any templates in Postorius, they may not be accessable if your setting for POSTORIUS_TEMPLATE_BASE_URL is not good. > May 16 01:48:15 2024 (61252) error opening connection to nntp_host: localhost > [Errno 111] Connection refused > May 16 01:48:15 2024 (61252) NNTP error for list vereinsmitglieder(a)ludothek.de: > [Errno 111] Connection refused Are you gating messages to/from usenet for this list? If so, you have to set host: and port: and maybe user: and password in the nntp section of mailman.cfg -- Mark Sapiro <mark(a)msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

6 months

[MM3-users] Re: Uncaught runner exception

by Wolfgang Bock

Yes, and I made all the tests as discribed here: https://workaround.org/ispmail/buster/relaying-through-postfix/ including the swaks test mentioned before output of sudo netstat -lntup | grep ":25" tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 20660/master tcp6 0 0 :::25 :::* LISTEN 20660/master output of sudo lsof -i :25 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME master 20660 root 13u IPv4 1474228 0t0 TCP *:smtp (LISTEN) master 20660 root 14u IPv6 1474229 0t0 TCP *:smtp (LISTEN) Regards Wolfgang -----Ursprüngliche Nachricht----- Von: Mark Sapiro <mark(a)msapiro.net> Gesendet: Dienstag, 7. April 2020 21:28 An: mailman-users(a)mailman3.org Betreff: [MM3-users] Re: Uncaught runner exception On 4/7/20 3:22 AM, Wolfgang Bock via Mailman-users wrote: > Apr 07 12:09:21 2020 (28206) Cannot connect to SMTP server localhost > on port 25 > > I have no idea what to do for solving my problems. Can you successfully telnet localhost 25 from a shell on the server? -- Mark Sapiro <mark(a)msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan _______________________________________________ Mailman-users mailing list -- mailman-users(a)mailman3.org To unsubscribe send an email to mailman-users-leave(a)mailman3.org https://lists.mailman3.org/mailman3/lists/mailman-users.mailman3.org/

4 years, 7 months

[MM3-users] Re: Uncaught runner exception

by Mark Sapiro

On 4/7/20 3:22 AM, Wolfgang Bock via Mailman-users wrote: > Apr 07 12:09:21 2020 (28206) Cannot connect to SMTP server localhost on port 25 > > I have no idea what to do for solving my problems. Can you successfully telnet localhost 25 from a shell on the server? -- Mark Sapiro <mark(a)msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

4 years, 7 months

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