>On Wed, 8 Feb 1995 08:12:00 CST Brick Verser said:
>>How does one determine which of many hundreds of userids subscribed to a
>>list is responsible for forwarding email to a now-non-existant userid@host
>>which bears no relation at all to any of the subscribers?
 
Following up on what Geert said ...
 
If you can identify the site or domain of the problem userid, you
can tell listserv to start generating headers so that the "TO: "
field is NOT the generic "to multiple recipients" but instead
generates a "real" TO: (at the expense of increased traffic).
 
To do same,
 
MAIL SET list SHORTHDR FOR *@*domain
MAIL QUIET SET list SHORT FOR *@*domain
 
This assumes all the subscribers were set SHORTB.
 
The purpose of the first command is to have LISTSERV generate
mail notification to each subscriber.  That mail will have
full subscriber info in the TO: field.
 
The second command will "restore" all users to SHORTBSMTP
without e-mailing them.  Check to make sure that no NEWS gateways
were affected.  They need FULL (or perhaps IETF) headers.
 
/P