Listowners are supposed to add/dele users using the ADD and DELETE commands. Is there any reason why not to GET list_name and then delete the lines of the users to be deleted or add new lines with new users, (except for the reason that it becomes QUIET add/delete) ? and then simply LSVPUT the file ? /Zvika p.s. I did do what I suggested on my test list, and it seemed to work, but I might have missed something.