Interestingly enough, according to Jim Milles' Mail Server Commands file (GET MAILSER CMD, email [log in to unmask]) all of the ones that he documents, save MAILBASE, do respond to the syntax: UNSUBSCRIBE listname Thus, you could compose one e-mail messages with multiple recipients with multiple unsubscribes e.g., to: listserv@searn, listproc@somehost unsubscribe lstown-l unsubscribe lstsrv-l unsubscribe proclist-l Of course SEARN would only respond positively for the first two unsubs, whereas SOMEHOST would only respond to the last. Of course LISTSERV syntax allows an asterisk for the listname which is a wildcard. If you are going to mix n' match MLMs though, I would not use the asterisk since it might prematurely terminate the command stream. From Jim's document: Leave a list: Listproc: UNSUBSCRIBE [listname] LISTSERV: SIGNOFF [listname] -- or -- UNSUBSCRIBE [listname] Mailbase: LEAVE [listname] Mailserv: UNSUBSCRIBE [listname] (UNSUBSCRIBE [listname] [address] if you subscribed under a different e-mail address.) Majordomo: UNSUBSCRIBE [listname] (UNSUBSCRIBE [listname] [address] if you subscribed under a different e-mail address.) -- co-owner INFOSYS, TQM-L, CPARK-L, ERAPPA-L, JANITORS, LDBASE-L, et -L URL:mailto:[log in to unmask] "Kids: don't e-mail to strangers!"