> Date:         Tue, 20 Feb 2001 13:11:24 -0500
> From: Fred Karp <[log in to unmask]>
>
> Is there any way to find out to which lists on a site a particular
> individual is subscribed?

If you know his subscription id you can do the following:

QUERY * FOR [log in to unmask]

That'll work for known addresses, which presumably you will know because
he's posting "I'm on vacation" messages.

Peter Rauch