ITS has implemented a Microsoft-recommended workaround that restores email access to devices running iOS 6.1. To protect our mail servers, we will be limiting the number of simultaneous connections from such devices.
You may view your calendar events but you may not add, delete, or make changes on your device. Doing so will cause your device to repeatedly fail to update your calendar on the server. If you do a calendar update from your iPhone or iPad, you may receive an error message “Cannot Get Mail.” If this happens, turn off your device and then turn it back on. If the problem persists contact the ITS Solution Center at 928-523-1511.
Apple has acknowledged the problem and will release an update to resolve this issue.