I am the owner of several lists, but because I no longer live on a VM system I must send all relevant commands via mail. Recently, I have been puzzled because commands that I have issued have neither been returned as invalid, nor have they been acted upon by LISTSERV. I think that I have finally figured out what was happening. Sometimes, when the command was a DELETE command because mail was bouncing for a particular address, I would compose the LISTSERV mail by forwarding the failed delivery message to LISTSERV so that I could avoid retyping the offending address. It appears that LISTSERV is sensitive to the Subject: field and not scanning for commands if, for example, the subject is "Undelivered Mail." Is this explanation reasonable? Is this a new behavior of LISTSERV or did I just never get caught by it before? What are the Subjects that I should avoid if I want to send a command to LISTSERV? -phil -- J. Philip Miller, Professor, Division of Biostatistics, Box 8067 Washington University Medical School, St. Louis MO 63110 [log in to unmask] - (314) 362-3617 [362-2693(FAX)]