I have SBS 2008 with Exchange 2007 and my emails accounts are from Yahoo Small Business.
The users have in their Outlooks their Yahoo POP account, like firstname.lastname@example.org, and the exchange account form the domain like Steve@company.local, where Steve is the way he authenticates in the network.
I want every email user, just to have an exchange account and have the benefits of it. We already have a domain name.
How do I set up exchange in order to have just one email account for user?