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exist, of course: The main one is that, in a dedicated messaging solution for Unity, you do
not have to worry about deploying e-mail clients, such as MS Outlook.
For a dedicated messaging infrastructure, Unity is the primary or sole client for all mail-
boxes, regardless of how many subscribers your total solution will have. This is important
because, when sizing Exchange 2000 for thousands of e-mail clients, it is typically neces-
sary to be generous on hardware and conservative on the number of mailboxes that you can
place on each mailbox store. With Unity, you do not have to do that as ...