Some of our network and systems folks here are working on fixing the mailer that serves our masses. I have been asked what the most appropriate way would be for them to deal with bounced mail when the sender was a Listserv list. They are concerned with just sending the message back to Listserv for fear that some Listserv's may actually post the bounced message to the list. Their main question is: If we receive a message from a list that we are not able to deliver, to whom/what should we send the bounced message to (and, if there is a hierarchy of who bounced mail should be sent to, what is the ordering)? I've re-read some of the release notes with Listserv 1.7b, and was wondering if it would be appropriate for us to route bounced mail back to list with the inclusion of the X-LSV-ListID field in the header followed by the name of the list. But I'm not clear on exactly how Listserv will handle this. Will Listserv realize that this is a bounced message and then route it to the owner of the list? Any help or comments appreciated. Peter Molnar Indiana University