The good news is that Allan Cargille at the U of Wisconsin ([log in to unmask]) has agreed to change the origin of error messages from their x.400 gateway to [log in to unmask] . This will be intercepted when you install LISTSERV 1.7 when it comes out (actually, Eric looks for the postmaster origin and also the "Subject: Delivery Report"... text so it should get intercepted one way or the other!). The bad news is that until 1.7 comes out you might get some bounces and they might start looping. To be safe I think it would be good to do a tell listserv serve [log in to unmask] off (at least that is what I would do if I weren't running the beta test version of 1.7). Marty