I just bought an HTC HD2 (WM 6.5) and set it up to synchronize with our corporate Exchange 2007 server. However, I can synchronize maximum 3 days of e-mail and 1 month of past appointments, although I have other options on my Windows Mobile Device Center (Vista). I though that was a WMDC bug, so I hard-reset the phone and did a wireless synchronization, but the result was the same. So I figured out that this is a setting on Exchange 2007, and asked our admins to change it. However, they insist that there is no such setting on Exchange 2007, because WM is not our corporate smart phone OS standard, so they don't know much about ActiveSync settings. And of course, they are lazy!!! So could any of you Exchange 2007 gurus out there point me in the right direction so that I can synchronize all of my e-mails to my HD2?