I have migrated mailboxes from an Exchange 2003 server to a new Exchange 2010 SP2 server. OWA and Outlook work fine for all users, but EAS does not. I can create the account for iOS and Android and the mailbox folders names are downloaded, but no mail items are loaded. A sync can be manually started and completed, but no mail appears.
No errors are given on the device or application logs.
I have checked the inherit permissions for each users' security settings and it is selected.
Exchange 2010 readiness tool did not indicate any issues.
All Exchange Services are started
The Exchange 2010 server holds Client Access, HT and Mailbox roles.
What am I missing?