[Mailman-Users] Mailman stopped delivering mail

[Eric Evans]

>What if anything do you have in mm_cfg.py for SMTPHOST and SMTPPORT? If
>nothing, Have you perhaps changed them in Defaults.py (Nothing in
>Defaults.py should ever be changed)?

The mm_cfg.py contains
SMTPHOST = '<128.253.175.139>'
which is the IP address of the server that is running Mailman.
There is no SMTPPORT in the mm_cfg.py.

>If these are all OK, I can only think of 3 possibilities for a
>difference:
>
>1) your DELIVERY_MODULE is not 'SMTPDirect' in which case, what is it?

DELIVERY_MODULE is set to 'SMTPDirect'.

>2) you are not running the test script with the same Python version as
>Mailman is using (not a likely cause)

We're using Python 2.2.2.

>3) you are not running the test script as the same user:group as
>Mailman's OutgoingRunner.

How can I check to see what user & group the Outgoing Runner is running 
as?  I don't know exactly what executable program that corresponds to.

>Also, does Mailman successfully send anything? E.g. password reminders
>or hold notifications.

No, Mailman doesn't send anything at all.  Interestingly I can email myself 
easily enough from this host using the mail command, and the mail is 
delivered without any problem, but Mailman always gives these 
"host/servname not known" errors.  What's most peculiar is that Mailman 
used to work just fine on this particular host, and to the best of my 
knowledge the system configuration has not been changed.

Eric