http://blogs.technet.com/kent_compton/archive/2009/03/05/would-you-like-to-try-hotmail-but-have-an-existing-email-account.aspxDo you have existing non-Hotmail/Live email account that you’ve had for a number of years?  Are you intrigued by the some of the new features and functionality of Windows Live Hotmail?  Perhaps you’re running into the other provider’s emailen-USCommunityServer 2.1 SP1 (Build: 61025.2)