We have a couple of users who have Iphones (4 and 4S) and Ipad 2. I was trying to configure the device such that they can use their Microsoft Exchange accounts to see their office emails. We have blackberrys and android devices which can be connected easily.
However on the apple devices, after entering all the information required email, domain, username, password it still does not work. I am not sure of the exact error, but it is in the lines of cannot locate the exchange server.