[Mailman-Users] Mail delivery bounces - why

[Jewel]

I just replaced an old mailman server last night and was sent an email 
saying that mail is bouncing.  What could be causing this?

Subject:
Uncaught bounce notification
From:
mailman-bounces at bc01s12.washburn.edu
Date:
Tue, 21 Mar 2006 10:21:32 -0600

To:
bna-uslawweeknews-owner at bc01s12.washburn.edu


The attached message was received as a bounce, but either the bounce
format was not recognized, or no member addresses could be extracted
from it.  This mailing list has been configured to send all
unrecognized bounce messages to the list administrator(s).

For more information see:
http://lists.washburn.edu/mailman/admin/bna-uslawweeknews/bounce


------------------------------------------------------------------------

Subject:
Mail Delivery Problems
From:
<mailer-daemon at washburnlaw.edu>
Date:
Tue, 21 Mar 2006 10:21:29 -0600

To:
<bna-uslawweeknews-bounces at bc01s12.washburn.edu>


The following message from bna-uslawweeknews-bounces at bc01s12.washburn.edu, addressed to:

admin at lists.washlaw.edu

is still undelivered after 10 attempts, and will be deleted from message queue.

3/21/2006 10:03:11 AM - Winsock error when communicating with exchanger lists.washlaw.edu: 198.252.9.198: [10061] Connection refused
3/21/2006 10:05:13 AM - Winsock error when communicating with exchanger lists.washlaw.edu: 198.252.9.198: [10061] Connection refused
3/21/2006 10:07:15 AM - Winsock error when communicating with exchanger lists.washlaw.edu: 198.252.9.198: [10061] Connection refused
3/21/2006 10:09:17 AM - Winsock error when communicating with exchanger lists.washlaw.edu: 198.252.9.198: [10061] Connection refused
3/21/2006 10:11:19 AM - Winsock error when communicating with exchanger lists.washlaw.edu: 198.252.9.198: [10061] Connection refused
3/21/2006 10:13:21 AM - Winsock error when communicating with exchanger lists.washlaw.edu: 198.252.9.198: [10061] Connection refused
3/21/2006 10:15:23 AM - Winsock error when communicating with exchanger lists.washlaw.edu: 198.252.9.198: [10061] Connection refused
3/21/2006 10:17:25 AM - Winsock error when communicating with exchanger lists.washlaw.edu: 198.252.9.198: [10061] Connection refused
3/21/2006 10:19:27 AM - Winsock error when communicating with exchanger lists.washlaw.edu: 198.252.9.198: [10061] Connection refused
3/21/2006 10:21:29 AM - Winsock error when communicating with exchanger lists.washlaw.edu: 198.252.9.198: [10061] Connection refused

-- 
Jewel