Hi, thanks for your answers. Maybe I have misunderstood the architecture.
What I can see in the mail.log is, that the incoming email towards a mailing list gets transported nearby "at once" from Postfix to Mailman. Then I see nothing in the Mailman logs for 20 seconds. Then Mailman prints out these message shown below and nearby "at once" I see the email in mail.log going out via Postfix. So, how/why could a Postfix configuration setting be the cause...? Postfix, as far as I can see it in mail.log, is handling the email fast as hell. This question is definitely not for ranting - I'm just trying to understand correctly how everything works together to find the "brake"... ;-) It the meantime I have opened a dedicated port for Mailman at my Postfix for re-injection, without a second unneeded round through Amavis & Co. - but this didn't help either. Regards Karsten On 11/27/2012 11:02 PM, Ben Cooksley wrote: > On Wed, Nov 28, 2012 at 10:56 AM, Ralf Hildebrandt > <ralf.hildebra...@charite.de> wrote: >> * Mark Sapiro <m...@msapiro.net>: >> >>>>> Nov 27 08:00:22 2012 (10393) >>>>> <mailman.0.1353999601.22399.carbonmark...@lists.mycompany.eu> smtp to >>>>> carbonmarkets for 1 recips, completed in 21.021 seconds >>>>> Nov 27 08:00:43 2012 (10393) >>>>> <mailman.1.1353999601.22399.agricult...@lists.mycompany.eu> smtp to >>>>> agriculture for 1 recips, completed in 21.013 seconds >>> [...] >>> >>> >>> It is extreme and highly unusual for a single Mailman-Postfix SMTP >>> transaction to take 20 seconds, but it is almost certainly due to >>> something in your Postfix configuration. >> >> It's probably some DNS resolution issue (I'd say). Or a really slow >> smtpd_proxy_filter. > > It could also be a sleep command, in one of the various > smtpd_client_restrictions rules. > Usually one puts permit_mynetworks (which contains > localhost/127.0.0.1) before those though. > >> >> -- >> Ralf Hildebrandt Charite Universitätsmedizin Berlin >> ralf.hildebra...@charite.de Campus Benjamin Franklin >> http://www.charite.de Hindenburgdamm 30, 12203 Berlin >> Geschäftsbereich IT, Abt. Netzwerk fon: +49-30-450.570.155 >> ------------------------------------------------------ >> Mailman-Users mailing list Mailman-Users@python.org >> http://mail.python.org/mailman/listinfo/mailman-users >> Mailman FAQ: http://wiki.list.org/x/AgA3 >> Security Policy: http://wiki.list.org/x/QIA9 >> Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ >> Unsubscribe: >> http://mail.python.org/mailman/options/mailman-users/bcooksley%40kde.org > ------------------------------------------------------ > Mailman-Users mailing list Mailman-Users@python.org > http://mail.python.org/mailman/listinfo/mailman-users > Mailman FAQ: http://wiki.list.org/x/AgA3 > Security Policy: http://wiki.list.org/x/QIA9 > Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ > Unsubscribe: > http://mail.python.org/mailman/options/mailman-users/karsten.becker%40ecologic.eu > ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: http://mail.python.org/mailman/options/mailman-users/archive%40jab.org