Has anyone implemented transport rules on a live@edu(or whatever Microsoft is calling it these days) instance to reject the delivery of messages that include SSN's? I see how to set up transport rules in Exchange 2007, and even how to do it in the Windows Live Admin page, though the rules there don't seem to allow for regexes, can anyone confirm this? If this is the case has anyone ever connected Powershell to a live@edu instance to implement the code found at the bottom of this page: http://technet.microsoft.com/en-us/library/aa997187.aspx What I really need is a concise how-to.