[Mailman-Users] Messages not getting to mailman

[Kudu]

When I send messages to mailman, they don't seem to be received by it
and don't end up in the archives.

One example from syslog:
Oct 13 08:00:08 techessentials postfix/smtpd[18546]: 5819914DC14:
client=localhost.localdomain[127.0.0.1]
Oct 13 08:00:08 techessentials postfix/cleanup[18548]: 5819914DC14:
message-id=<mailman.0.1318510802.18540.openglobe-l at lists.techessentials.org>
Oct 13 08:00:08 techessentials postfix/smtpd[18546]: disconnect from
localhost.localdomain[127.0.0.1]
Oct 13 08:00:08 techessentials postfix/qmgr[353]: 5819914DC14:
from=<openglobe-l-bounces at lists.techessentials.org>, size=2245,
nrcpt=1 (queue active)Oct 13 08:00:08 techessentials
postfix/smtpd[18546]: disconnect from localhost.localdomain[127.0.0.1]
Oct 13 08:00:09 techessentials postfix/pipe[18549]: 5819914DC14:
to=<openglobe-l-owner at lists.techessentials.org>, relay=mailman,
delay=0.83, delays=0.18/0.02/0/0.63, dsn=2.0.0, status=sent (delivered
via mailman service)
Oct 13 08:00:09 techessentials postfix/qmgr[353]: 5819914DC14: removed

How can I fix this?

Note: I'm not subscribed to the list, so please keep me CC'd.

-- 
~ Kudu