I have heard that I can only add a new user in SPS by adding a user to
the server SPS is running on. I know that in WSS I can add a user just
by entering an email address, it doesn't have to be realted at all to
the server WSS is running on.
I want to be able to add users to SPS who aren't necessarily registered
on the domain. Can I do this? How could I do this?