Error_messages

 %MAILSERV-W-CANTDELETE, cannot delete old mailing list file

     An error occurred while trying to delete the old mailing list
     file. Try again later; the postmaster in charge of the mail
     server has been notified.

 %MAILSERV-W-CANTUPDATE, cannot update mailing list file

     An error occurred while trying to update the mailing list. Try
     again later; the postmaster in charge of the mail server has
     been notified.

 %MAILSERV-W-ILLADDRESS, illegal address

     You specified an illegal or invalid address for the optional
     address parameter. Resend the command either omitting the
     address entirely or specifying a valid address.

 %MAILSERV-W-INSFPRM, missing command parameters

     You failed to supply the name of the mailing list to
     unsubscribe from. Resend the command with a list name
     specification.

 MAILSERV-W-LNF, mailing list not found

     The mailing list you specified does not exist. Resend the
     command specifying the name of a valid mailing list. You can
     use the DIRECTORY/LIST command to obtain a listing of the valid
     mailing list names.

 %MAILSERV-W-LSTCREERR, unable to create new mailing list

     The mailing list specified by the list-name parameter does not
     exist and could not be created. Check to make sure that you
     specified the correct list name.

 %MAILSERV-W-LSTLOCKED, mailing list currently locked by another user

     The mailing list is currently locked; you cannot unsubscribe
     from it at this time. Try again later.

 %MAILSERV-F-NOMAILLIST, mailing lists are not enabled

     The mail server is not configured to operate as a list server.

 %MAILSERV-W-NOSUCHADR, no such address subscribed to the mailing list

     You are not subscribed to the specified mailing list. If you
     used the optional address parameter, then the specified address
     is not subscribed. Check to make sure that you specified the
     correct mailing list name or address or both.

 %MAILSERV-W-PRV, insufficient privilege or file protection violation

     You are not allowed to unsubscribe from this mailing list or
     unsubscribe addresses other than your own from the list.