On Wed, 3 Oct 2001, Erry Rahmawan wrote:

> Hi All,
>
> We wanna synch our existing user that already registered in our existing
> system with Listserv system. We want to make it sure there's no double
> record that not synch in both system.
>
> Is there any mechanisme / function that can check if user already exist is
> Listserv or not ?

To check all your lists for a particular address, send to Listserv the
command:

   query * for address pw=xxxx