[Mailman-Users] Domain not found problems

Mark Sapiro mark at msapiro.net
Thu May 16 05:48:33 CEST 2013

On 05/15/2013 05:02 PM, Richard Shetron wrote:
> I'm having problems with DOMAIN not found errors.  Is there anyway to
> edit/remove them from the qfiles/out .pck files?  They don't seem to be
> getting purged by mailman and hang around way too long.

If the MTA (Postfix) is returning a 4xx status for the domain not found,
Mailman will move the queue entry to the retry queue and it will be
retried (moved back to the out queue) every DELIVERY_RETRY_WAIT seconds
(default 1 hour) until it is DELIVERY_RETRY_PERIOD (default 5 days) old
at which time the remaining undelivered recipients will be treated as a

If that is too long to wait, you can shorten the time by setting


or maybe


or whatever in mm_cfg.py, or since the deliverable addresses should have
been delivered, simply remove the .pck file from the queue.

To be more selective about which recipients to remove, see

> I'm using postfix and mailman 2.1.12 under ubuntu 8.04.
> I found item 4.20 in the FAQ, but I'm not sure if it would work and
> still working on learning postfix as my normal admin is ill.  I'd only
> want it to work for mailman and not for other users regarding this problem.

Then this is not what you want as it would affect all mail. Further, it
just moves the problem to Postfix which probably keeps retrying at
intervals until its expiration time elapses.

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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