[Mailman-Users] Messages not arriving - deep into filtering and delivery

[Ralf Hildebrandt]

* Drew Tenenholz <dtenenholz at rcn.com>:

> So, in doing all of this analysis, I came accross something odd.  Two Mesages that DID ARRIVE look like this in my /var/log/maillog:
> 
> Mar 31 21:01:31 promedmail postfix/cleanup[32767]: 27A9F758035: message-id=<5158a425.6590700a.0879.ffffb894 at mx.google.com>
> Mar 31 21:01:31 promedmail postfix/qmgr[4400]: 27A9F758035: from=<promed-fra-bounces at promedmail.org>, size=14135, nrcpt=311 (queue active)
> ...
> Mar 31 21:01:32 promedmail postfix/smtp[307]: 27A9F758035: to=<pollackmp at mindspring.com>, relay=tummms.chboston.org[134.174.12.42]:25, delay=1.2, delays=0.73/0.07/0.04/0.37, dsn=2.0.0, status=sent (250 2.0.0 1ayt400cs0-1 Message accepted for delivery)
> 
> and
> 
> Apr  2 02:29:52 promedmail postfix/cleanup[6635]: 54981758035: message-id=<515A428B.50808 at gmail.com>
> Apr  2 02:29:52 promedmail postfix/qmgr[4400]: 54981758035: from=<promed-eafr-bounces at promedmail.org>, size=8554, nrcpt=480 (queue active)
> ...
> Apr  2 02:29:52 promedmail postfix/qmgr[4400]: 54981758035: from=<promed-eafr-bounces at promedmail.org>, size=8554, nrcpt=480 (queue active)
> 
> 
> while messages that DID NOT ARRIVE all sort of look like this:
> 
> Mar 30 04:00:35 promedmail postfix/cleanup[18138]: ACCE0758034: message-id=<201303300400.r2U402Tx030401 at healthmap.chip.org>
> Mar 30 04:00:35 promedmail postfix/qmgr[4400]: ACCE0758034: from=<promed-daily-update-bounces at promedmail.org>, size=9316, nrcpt=500 (queue active)
> ...
> Mar 30 04:00:36 promedmail postfix/smtp[18143]: ACCE0758034: to=<pollackmp at mindspring.com>, relay=tummms.chboston.org[134.174.12.42]:25, conn_use=8, delay=2.1, delays=1.1/0.46/0/0.55, dsn=2.0.0, status=sent (250 2.0.0 1b42w6x590-8 Message accepted for delivery)
> 
> 
> OK, if you've gotten this far, you'll see that the message-id ends in either mx.google.com or gmail.com (which are popular and common, and go through) and failing messages end in my specialized domain healthmap.chip.org.  Is this the sort of thing that causes a problem with delivery?  Are we maybe missing some sort of PTR records in the DNS?  That is fixable, but I don't understand why some messages get the 'special' domain and others do not.

Have you tried enabling VERP? So there's one message per recipient.

-- 
Ralf Hildebrandt                   Charite Universitätsmedizin Berlin
ralf.hildebrandt at charite.de        Campus Benjamin Franklin
http://www.charite.de              Hindenburgdamm 30, 12203 Berlin
Geschäftsbereich IT, Abt. Netzwerk fon: +49-30-450.570.155