How do I get my iPad running iOS 6.0.1 to connect to my MS Exchange mail server?
You've got a 50 / 50 chance it's the device or the server at this point.

If you have access to the server logs, you could know exactly what is wrong. Alternatively, you could set up a different exchange account on your iOS device and use that to rule in or out the device and/or the account+server.

As there is so little you enter on iOS, apart from the date/time zone being wrong, or making a typo in the password or server settings, the problem is most likely on the server and of things with that account.


http://support.apple.com/kb/HT2480


I have also had luck choosing one item only to sync initially - so if your Mail is hanging, the next time you attempt, do not enable Mail and instead just try contact or calendar data.