Mailman queues 'stopped'

Mailman is a mailing list manager.

Mailman list messages not going through?  Check that /etc/init.d/mailman is running.  And if not start it and make it run on boot up (chkconfig --level 3 mailman on).

You can see the mail queues at something like /var/mailman/qfiles.

If the queue is still not being cleared out then delete old lockfiles.  e.g. locks/master-qrunner.domain.pid