Short of cranking up some logging on the Exchange server, pretty sure you
don't have a way of knowing who has actually used the permissions you've
given.

That said, generally, when posting to a newsgroup, it really really helps
if you, y'know, put text in the message. Talk about your environment. Versions
of the client, of the server. What you're trying to do in detail.

You know.. the stuff you'd tell someone if you were talking to them and trying
to get help.

--
-f.h.