Thanks to Bert Barbe's MSGD server for VM, MSP support will be available in release 1.8a of LISTSERV. You can already try it on SEARN, but note that LISTSERV replies "in kind" and will expect you to have a MSP server if you send it a command via MSP. In other words, if you only have a MSP client you will get no answer unless you prefix your command with 'MAIL'. This is the same situation as NJE nodes which can send but not receive interactive messages. Eric