I just pulled my head out.
BUT, I'm going to answer my own query so that if anyone else is a dufus like me they will have the answer in this thread.
www.abovetopsecret.com...
BUT, I still do not know if this communicates via actual email addresses or u2us.
FURTHERMORE, I have a question about the u2u system. Can you send a u2u to more than one receiver??? if so, what is the delimiter.