How to : View or Configure Exchange ActiveSync Mailbox Policy Properties

1. Open Exchange Management Console installed in your CAS server.
2. Go To Organization Configuration > Client Access.
3. Click tab Exchange ActiveSync Mailbox Policies.

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EAS References

Just for my reference

http://msdn.microsoft.com/en-us/library/hh361570%28v=exchg.140%29.aspx
http://msdn.microsoft.com/en-us/library/hh531590%28v=exchg.140%29.aspx