On Wednesday 28 May 2003 10:16 am, Raquel Rice wrote:

The FAQ that is included in the Mailman download indicates that it could also be a problem with your MTA. Make certain that your MTA isn't set up to do DNS lookups on each address.

Thank you for your suggestion.

I did read the FAQ and checked the MTA configuration, as well as my server settings. I went through this mailing list archives. And I found nothing.

With the logs, I was able to trace wich messages were the ones causing problems. And all the problematic messages were +300 KB. I discovered it using top, watch, less and patience.

Regards, Josep

Josep L. Guallar-Esteve Eastern Radiologists, Inc. Systems and Network Administration http://www.easternrad.com