On 6/13/25 01:58, Mark Sapiro wrote:
On 6/12/25 15:05, Florian Sukup wrote:
I always restart mailman3 after changing main.cf
I asked if you restarted/reloaded Postfix. I would assume that you had,
Sorry, I meant postfix which I restart after changing main.cf or master.cf.
but I'm at a loss to understand the issue, unless your
/etc/postfix/master.cf is missing an uncommented entry for lmtp like
```
lmtp unix - - y - - lmtp
```
I found it there, here is my master.cf:
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
smtp inet n - y - - smtpd
submission inet n - y - - smtpd
-o syslog_name=postfix/submission
-o smtpd_tls_security_level=encrypt
-o smtpd_sasl_auth_enable=yes
-o smtpd_sasl_type=dovecot
-o smtpd_sasl_path=private/auth
-o smtpd_tls_auth_only=yes
-o smtpd_reject_unlisted_recipient=no
pickup unix n - y 60 1 pickup
cleanup unix n - y - 0 cleanup
qmgr unix n - n 300 1 qmgr
tlsmgr unix - - y 1000? 1 tlsmgr
rewrite unix - - y - - trivial-rewrite
bounce unix - - y - 0 bounce
defer unix - - y - 0 bounce
trace unix - - y - 0 bounce
verify unix - - y - 1 verify
flush unix n - y 1000? 0 flush
proxymap unix - - n - - proxymap
proxywrite unix - - n - 1 proxymap
smtp unix - - y - - smtp
relay unix - - y - - smtp
-o syslog_name=postfix/$service_name
showq unix n - y - - showq
error unix - - y - - error
retry unix - - y - - error
discard unix - - y - - discard
local unix - n n - - local
virtual unix - n n - - virtual
lmtp unix - - y - - lmtp
anvil unix - - y - 1 anvil
scache unix - - y - 1 scache
postlog unix-dgram n - n - 1 postlogd
maildrop unix - n n - - pipe
flags=DRXhu user=vmail argv=/usr/bin/maildrop -d ${recipient}
uucp unix - n n - - pipe
flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail
($recipient)
ifmail unix - n n - - pipe
flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp unix - n n - - pipe
flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender
$recipient
scalemail-backend unix - n n - 2 pipe
flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store
${nexthop} ${user} ${extension}
mailman unix - n n - - pipe
flags=FRX user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
${nexthop} ${user}
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Is the last line a problem? It seems to be from mailman2.
Is there a possibility to debug in more detail? To find out when and
where it takes the wrong turn?
The system running has grown over many years and even if the hardware
changed the configuration was kept. So there may a flaw outside the
postfix/mailman configuration which causes the error, ie. network
configuration.
Another thing I can do is to upgrade from bullseye to bookworm. Which I
haven't done yet because I was with mailman2/sendmail. That's the reason
to change to mailman3/postfix. Since, mailman2 doesn't work anymore I
could do it and hope for a miracle ... . This would mean postfix 3.5.25
-> 3.7.11 and mailman3 3.3.3 -> 3.3.8 . That's more an act of desperation.
Thanks for your help,
Florian.
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