On 9 Mar 2004 at 19:48, Bill Verity <[log in to unmask]> wrote: > I'd like to prevent an owner from adding 100k subscribers to a list. > We prefer to handle this load with 10 lists of 10k each and trigger > their delivery by staggered Prime= headers. Is there an exit I could > write to catch this or has someone already figured out how to catch > this? For an extra charge (don't ask me how much, I'm not a sales rep), you can buy a LAK with SCOPE=ISP, which allows you to put a limit on the number of subscribers for each list. See Section 18 of the Site Manager's manual (specifically 18.2). Francoise