Microsoft have announced the Exchange ActiveSync Logo Programme to help validate devices that are compatible with ActiveSync, though the requirements may look similar to Windows Phone 7 compatibility,
Microsoft Windows Phone 7 doesn’t support encryption or the full range of Exchange ActiveSync policies, but there are some explanations
A while ago I knocked up a table showing which devices (Apple iPad, iPhone, Google Android etc) were compatible with what Microsoft Exchange ActiveSync Policies. I’ve just updated it to include Windows Phone 7.
Microsoft’s new Windows Phone 7 platform supports Exchange ActiveSync policies, but like Google Android only a subset and far fewer than the Apple iPhone or iPad.
Microsoft Exchange provides the ability to apply and enforce a range of security policies on Windows, Apple iPhone and Google Android.