DBA328 (9/18/2012)
Microsoft SQL Server distributed queries can be used to query data from the Exchange Web Store through OLE DB Provider for Exchange and can be joined to tables in SQL Server, you could try it.http://msdn.microsoft.com/en-us/library/ms191461(v=SQL.100).aspx
Let's make this easier for others:
http://msdn.microsoft.com/en-us/library/ms191461(v=SQL.100).aspx