[Mailman-Users] Mailman needs 20 seconds to complete per email

Mark Sapiro mark at msapiro.net
Tue Nov 27 22:42:01 CET 2012

Karsten Becker wrote:
>I'm running an Ubuntu Server 10.04 LTS (Lucid Lynx) with the repository
>mailman in version
>> ii  mailman                         1:2.1.13-1ubuntu0.2
>Powerful, web-based mailing list manager

Please see the FAQ at <http://wiki.list.org/x/OIDD>.

>> Nov 27 08:00:22 2012 (10393) <mailman.0.1353999601.22399.carbonmarkets at 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.agriculture at 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.

See the FAQs at <http://wiki.list.org/x/roA9> and
<http://wiki.list.org/x/rIA9> for some hints that may help.

Also see the FAQ at <http://wiki.list.org/x/-IA9> for a way to enable
logging from Python's smtplib which may help you determine in exactly
what part of the SMTP transaction the delay occurs in the response
from Postfix.

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

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