|This article refers to the Office 365 Email and Calendaring Pilot. If you're looking for Exchange Email and Calendaring on the Exchange 2013 Server, see: MIT Email Setup Landing.
If you're not sure which system you're using, see: How do I tell if my email and calendaring data is on Exchange 2013 Server or using Office 365?
After migrating to O365, you will need to delete and recreate your Exchange account for iCal and Apple Mail. Unfortunately, this means your mail and calendar items will need to re-sync. This may be time consuming. Unfortunately there is no workaround to avoid this issue, however, migrated users can use OWA to read and respond to email while your Apple Mail account resyncs with Office 365. Here is a link for navigating the new Office 365 OWA
- Go to System Preferences > Internet Accounts
- Delete your existing MIT Exchange account by selecting it and clicking on the - at the bottom of the list of accounts.
- To configure for O365, Select Exchange from the list of account types.
- Enter your full mit email address email@example.com and password. Click Continue.
- You are prompted to select the accounts you want to use with this account. Select them, then click Done.
Result: Your Exchange account will be set up and you will be able to access your mail and calendar from Apple Mail and iCal normally.