The issue was that as of 12.04 ubuntu upgraded to ipv6 support.
My mailman install required relaying of mails by postfix but
because the system was now ipv6 enabled, this
was not possible until add following to mynetworks
[::1]/128
Thanks to Mark Sapiro on the mailman list for persisting
and finding the answer.
Maybe this will save someone else the time that it cost me.
Is the cause of this type of issue my ignorance alone?
Why (else) do these things happen?
--
Best regards,
Eric Smith
Scott Kitterman wrote on Wed-25-Jul 12 9:07PM
> On Wednesday, July 25, 2012 08:55:52 PM Eric Smith wrote:
> > Thanks Robert (Scott)
> >
> > I have upgraded, checked and followed the Ubuntu docs.
> > transport in master.cf corrected (I had a typo that gave the
> > error with the user expansion), now it is like this;
> >
> > [root@pepper ~] $ grep -A1 mailman /etc/postfix/master.cf
> > mailman unix - n n - - pipe
> > flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
> > ${nexthop} ${user}
> >
> > $ mutt fres...@fresher2.nl -stest</dev/null;sleep 2;\
> > sudo sh -c "find /var/log/ -mmin -1; grep fresher /var/log/mail.log|tail
> > -1" /var/log/syslog
> > /var/log/mail.log
> > /var/log/auth.log
> > Jul 25 20:45:53 localhost postfix/local[10429]: 70E4329020F: \
> > to=<|/var/lib/mailman/mail/mailman post fres...@fruitcom.com>, \
> > orig_to=<fres...@fresher2.nl>, relay=local, delay=0.17, \
> > delays=0.11/0/0/0.06, dsn=5.1.1, status=bounced (unknown user: \
> > "|/var/lib/mailman/mail/mailman post fresher")
> >
> > FWIW:
> > [eric@pepper ~] $ echo $HOSTNAME
> > pepper.fruitcom.com
> >
> > (Tooth enamel wearing a bit thin)
> >
> > Any ideas where I could look?
>
> I've never used mailman, so I don't know for sure about this, but I note
> you're using "user=list" in the flags for the mailman service, but I see
> "/var/lib/mailman/mail/mailman post fresher" in the logs. Is fresher a valid
> address in your domain?
>
> Scott K
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