I believe what you are getting is the following. When you send a message to MU SEUM-L it is then rerouted out through the server to each individual who has su bscribed to MUSEUM-L. When the mail reaches its destination the computer at th at destination attempts to deliver the mail to the individual's userid. In som e cases the local computers try several times to deliver the mail to that parti cular individual that may still be listed on the local system. After these att empts or after the first attempt the local computer server ("postmaster") then returns a message to the original sender indicating a problem with delivery. I n this case MUSEUM-L sent the distribution message so therefore the return "pos tamster" message is posted to everyone on MUSEUM-L. I am not associated with the MUSEUM-L management however our mainframe here at UF does the same for local messages and I often receive messages like this for individual I mail to that have left an institution or who have changed addresses. I hope this helps. JIM Jim Ellis Office of International Studies and Programs 123 Tigert Hall Telephone: (904) 392-6356 (NEW #) UNIVERSITY OF FLORIDA BITNET: JELLIS@NERVM GAINESVILLE, FLORIDA 32611 INTERNET: [log in to unmask]