On 03/20/2015 08:42 AM, Marco Stoecker wrote:

> 
>> What are the rest of the postfix log messages from 'grep 6D42445B'
>> and 'grep 4ACCAD07' of the log file?
> 
> and here it comes...
> 
> for grep 6D42445B:
> 
> Mar 18 22:16:43 hostname postfix/smtpd[9815]: 6D42445B:
> client=localhost[::1]
> Mar 18 22:16:43 hostname postfix/cleanup[9818]: 6D42445B:
> message-id=<5509eb1c.8050...@stoecker-family.de>


OK. This message was received from something on localhost (IPv6 [::1] at
22:16:43 and delivered to all the Mailman list recipients.


> Mar 18 22:16:46 hostname postfix/qmgr[3081]: 6D42445B:
> from=<ma...@stoecker-family.de>, size=6653, nrcpt=5 (queue active)
> Mar 18 22:16:47 hostname postfix/local[9821]: 6D42445B:
> to=<listA@localhost>, relay=local, delay=4, delays=2.8/0.13/0/0.98,
> dsn=2.0.0, status=sent (delivered to command:
> /var/lib/mailman/mail/mailman post listA)
> Mar 18 22:16:47 hostname postfix/local[9825]: 6D42445B:
> to=<listB@localhost>, relay=local, delay=4, delays=2.8/0.19/0/0.93,
> dsn=2.0.0, status=sent (delivered to command:
> /var/lib/mailman/mail/mailman post listB)
> Mar 18 22:16:47 hostname postfix/local[9827]: 6D42445B:
> to=<listC@localhost>, relay=local, delay=4, delays=2.8/0.33/0/0.81,
> dsn=2.0.0, status=sent (delivered to command:
> /var/lib/mailman/mail/mailman post listC)
> Mar 18 22:16:47 hostname postfix/local[9820]: 6D42445B:
> to=<listD@localhost>, relay=local, delay=4, delays=2.8/0.11/0/1,
> dsn=2.0.0, status=sent (delivered to command:
> /var/lib/mailman/mail/mailman post listD)
> Mar 18 22:16:47 hostname postfix/local[9823]: 6D42445B:
> to=<listE@localhost>, relay=local, delay=4, delays=2.8/0.17/0/0.98,
> dsn=2.0.0, status=sent (delivered to command:
> /var/lib/mailman/mail/mailman post listE)
> Mar 18 22:16:47 hostname postfix/qmgr[3081]: 6D42445B: removed
> 
> and for grep 4ACCAD07:
> 
> Mar 18 22:16:46 hostname postfix/smtpd[9815]: 4ACCAD07:
> client=localhost[::1]
> Mar 18 22:16:46 hostname postfix/cleanup[9818]: 4ACCAD07:
> message-id=<5509eb1c.8050...@stoecker-family.de>


And then 3 seconds later something on the same host delivered a second
copy to Postfix which delivered that to the lists also.


> Mar 18 22:16:48 hostname postfix/qmgr[3081]: 4ACCAD07:
> from=<ma...@stoecker-family.de>, size=6652, nrcpt=5 (queue active)
> Mar 18 22:16:49 hostname postfix/local[9827]: 4ACCAD07:
> to=<listB@localhost>, relay=local, delay=2.9, delays=1.9/0.01/0/1,
> dsn=2.0.0, status=sent (delivered to command:
> /var/lib/mailman/mail/mailman post listB)
> Mar 18 22:16:49 hostname postfix/local[9825]: 4ACCAD07:
> to=<listC@localhost>, relay=local, delay=2.9, delays=1.9/0.01/0/1,
> dsn=2.0.0, status=sent (delivered to command:
> /var/lib/mailman/mail/mailman post listC)
> Mar 18 22:16:49 hostname postfix/local[9821]: 4ACCAD07:
> to=<listD@localhost>, relay=local, delay=3, delays=1.9/0/0/1,
> dsn=2.0.0, status=sent (delivered to command:
> /var/lib/mailman/mail/mailman post listD)
> Mar 18 22:16:49 hostname postfix/local[9820]: 4ACCAD07:
> to=<listE@localhost>, relay=local, delay=3, delays=1.9/0.01/0/1,
> dsn=2.0.0, status=sent (delivered to command:
> /var/lib/mailman/mail/mailman post listE)
> Mar 18 22:16:49 hostname postfix/local[9823]: 4ACCAD07:
> to=<listA@localhost>, relay=local, delay=3, delays=1.9/0/0/1,
> dsn=2.0.0, status=sent (delivered to command:
> /var/lib/mailman/mail/mailman post listA)
> Mar 18 22:16:49 hostname postfix/qmgr[3081]: 4ACCAD07: removed


So this duplication occurred before Mailman and even before Postfix
delivering to Mailman. It could be anything. You could try grepping the
log for the Message-ID and see if that gives a clue.

Look for an original arrival being passed to some process that returns
two copies.

-- 
Mark Sapiro <m...@msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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