I get rejects like this from time-to-time:

The enclosed message, found in the  XXXXXX-L mailbox and shown under the spool
ID 1522352 in the system log, has been identified as a possible delivery error
notice for the  following reason: mail origin is listed  in the "Filter=" list
header keyword (or its default value for the XXXXXX-L list).

What headers are examined?  I've always assumed only the From: and 
Sender:  However, I have some mail now that has this message and I 
can't see anything wrong and none of my filtered addresses are 
present.  What else could trigger this message.  The list is Send= 
Editor and the message is generated after the editor sends it back 
with the Resent- headers.


-- 
When a clock is hungry it goes back four seconds.

Bill Verity - 814-865-4758  Fax: 814-863-7049
215A Computer Building - Information Technology Services, Penn State University
At the office - on my Mac, of course ;-)