Karen's info is useful to some, I am sure, but Jacob Halter and Pete
have the right of it here, I think.

I added a sub for [log in to unmask]  then tried
change listname [log in to unmask] [log in to unmask]

and got the "missing parameter - target address"   error.
Changed the command to:
change listname d*[log in to unmask] [log in to unmask]

and it worked.  As Mr. Halter said, change does not like "/".

Question?  If CHANGE doesn't like "/" in an address why does LISTSERV
accept it as an address element to start with?  It isn't as common an
address element as it used to be, but it is still around, and will be
accepted as a valid subscription address element.  Why will CHANGE not
accept it as a valid address element?      Douglas