Unfortunately the mail addresses are never repeated. The spammers just send message after message with different forged addresses. The owners of the forged addresses then get some garbled HTML SPAM interspersed with LISTSERV "INVALID COMMAND" messages. Ron >If it is occurring multiple times from the same address, I believe the listserv > >QUIET SERVE userid@node OFF DROP > >/Pete > >At 15:44 11/30/2007 Friday, listserv postmaster wrote: >>How do people handle SPAM being sent to the LISTSERV server? >>Is there any way to just turn off "INVALID COMMAND" response >