On Sat, 29 May 1999 08:35:10 -0400, Pete Weiss <[log in to unmask]> wrote:

>|Invalid option - "KAREN". The valid options are GLobal, LOCal and NETWIDE
>|(minimum abbreviations shown in upper case).
>
>Many folks  think that the UNSUBSCRIBE command has the same operands as
>the SUBSCRIBE command.  It does NOT.  The only operand of the UNSUBSCRIBE
>command is the listname.

In other words,  Your people are sending this command:

 UNSUBSCRIBE listname Karen Jones
 or
 SIGNOFF listname Karen Jones

This is incorrect.  The correct command format is simply:

 UNSUBSCRIBE listname
 or
 SIGNOFF listname

Note there is no name or email address.