Does outbound email work for other applications? Does something like
mail -s 'Test Email' [email protected] < /opt/mailman/core/var/logs/smtp.log work? On Thu, Jun 4, 2026 at 9:10 AM Stefan Bauer via Mailman-users < [email protected]> wrote: > Dear Users, > > I'm debugging since several days a mailman3 installation and can not get > mailman to deliver mails to list members. > > Mailman logs Cannot connect to SMTP server, however the server is > listening, but i see no connection attempts. > > In queue/out, i see changing files all the time: > > drwxrwx--- 2 mailman nogroup 4.0K Jun 4 13:04 . > drwxr-xr-x 15 mailman nogroup 4.0K Jun 4 08:22 .. > -rw-rw---- 1 mailman nogroup 6.1K Jun 4 12:22 > 1780575734.9281623+0ad5f564c9fc5f27750a09b948f3480d9047cbaa.pck.tmp > -rw-rw---- 1 mailman nogroup 6.1K Jun 4 13:04 > 1780578250.2070453+752ca17af5c64af7aab5f0fc61ac2ea28b091825.bak > 038b90c74d8d:/opt/mailman/var/queue/out# ls -alh > total 24K > drwxrwx--- 2 mailman nogroup 4.0K Jun 4 13:04 . > drwxr-xr-x 15 mailman nogroup 4.0K Jun 4 08:22 .. > -rw-rw---- 1 mailman nogroup 6.1K Jun 4 12:22 > 1780575734.9281623+0ad5f564c9fc5f27750a09b948f3480d9047cbaa.pck.tmp > -rw-rw---- 1 mailman nogroup 6.1K Jun 4 13:04 > 1780578250.7552953+6350a013583657c317c0a64b9cf2039dca645974.bak > 038b90c74d8d:/opt/mailman/var/queue/out# > > SMTP/DEBUG-Log is flooded with over and over same attempts: > > ==> /opt/mailman/core/var/logs/smtp.log <== > Jun 04 13:04:46 2026 (26) Using agent: <mailman.mta.deliver.Deliver object > at 0x79ed98555310> > Jun 04 13:04:46 2026 (26) IndividualDelivery to: [email protected] > > ==> /opt/mailman/core/var/logs/debug.log <== > Jun 04 13:04:46 2026 (31) [VirginRunner] starting oneloop > Jun 04 13:04:46 2026 (31) [VirginRunner] ending oneloop: 0 > Jun 04 13:04:46 2026 (26) [OutgoingRunner] finishing filebase: > 1780578286.711373+091038a49a00758fdd2ba5265714e2fa31ea4843 > Jun 04 13:04:46 2026 (26) [OutgoingRunner] doing periodic > Jun 04 13:04:46 2026 (26) [OutgoingRunner] committing transaction > Jun 04 13:04:46 2026 (26) [OutgoingRunner] checking short circuit > Jun 04 13:04:46 2026 (26) [OutgoingRunner] ending oneloop: 1 > Jun 04 13:04:46 2026 (26) [OutgoingRunner] starting oneloop > Jun 04 13:04:46 2026 (26) [OutgoingRunner] processing filebase: > 1780578286.7329357+2ec378350ee99307adc287fc8727fb9120a385d3 > Jun 04 13:04:46 2026 (26) [OutgoingRunner] processing onefile > Jun 04 13:04:46 2026 (26) [outgoing] <function deliver at 0x79ed98b85d00>: > <gxZS.-LyKCSHn9UWsyVepCakA9g@flTQyy2_BUC0KFtMliiieCkabFXP1SdNnP1xIyNQp-k.xz > > > > ==> /opt/mailman/core/var/logs/smtp.log <== > Jun 04 13:04:46 2026 (26) Using agent: <mailman.mta.deliver.Deliver object > at 0x79ed98a43bf0> > Jun 04 13:04:46 2026 (26) IndividualDelivery to: [email protected] > > If i restart the docker-core container, i see a single time the error > "Cannot connect to SMTP server 172.17.0.1 on port 587". > > my config: > > [runner.retry] > sleep_time: 10s > > [webservice] > hostname: 172.18.0.2 > port: 8001 > admin_user: restadmin > admin_pass: restpass > configuration: /etc/gunicorn.cfg > > [mta] > incoming: mailman.mta.postfix.LMTP > outgoing: mailman.mta.deliver.deliver > lmtp_host: 172.18.0.2 > lmtp_port: 8024 > smtp_host: 172.17.0.1 > smtp_port: 587 > smtp_user: > smtp_pass: > smtp_secure_mode: starttls > smtp_verify_hostname: false > smtp_verify_cert: false > configuration: /etc/postfix-mailman.cfg > > [logging.smtp] > level: debug > > [logging.error] > level: debug > > [logging.debug] > level: debug > > [archiver.mail_archive] > enable: no > configuration: /opt/mailman/mail_archive_dummy.cfg > [archiver.hyperkitty] > class: mailman_hyperkitty.Archiver > enable: yes > configuration: /etc/mailman-hyperkitty.cfg > > > Any helps is greatly appreciated. > > thank you. > > Stefan > _______________________________________________ > Mailman-users mailing list -- [email protected] > To unsubscribe send an email to [email protected] > https://lists.mailman3.org/mailman3/lists/mailman-users.mailman3.org/ > Archived at: > https://lists.mailman3.org/archives/list/[email protected]/message/WEFIFBFXYCSWNDJR65RRKJW7N52KVLF2/ > > This message sent to [email protected] > _______________________________________________ Mailman-users mailing list -- [email protected] To unsubscribe send an email to [email protected] https://lists.mailman3.org/mailman3/lists/mailman-users.mailman3.org/ Archived at: https://lists.mailman3.org/archives/list/[email protected]/message/OGAGQYS7J6RLXJCCIV5UE56RRP6JJG5E/ This message sent to [email protected]
