Dear Madame Kohen (and others): We have had a similar problem in FISH-ECOLOGY with bounces from IBM-B/UK. As far as I can see, that is a very good way the British have arranged for bounces: There is a machine which collects bounces from subscribers from the whole UK and set ups a message (the one you receive). In the loads to both networks and listowners are minimized. However, to address the bounces you may have to scan in your list the UK subscribers. Recently, there has been a lot to FISH-ECOLOGY from Commonwealth countries, particularly .UK, .AU and .NZ. They have changed many machines and "I feel" it also has something to do with the routing tables. Aldo-P. > Return-Path: <[log in to unmask]> ...