When users Logs into OWA 2007, he gets below exception error

Exception

Exception type: Microsoft.Exchange.Data.Storage.StoragePermanentException

Exception message: There was a problem accessing Active Directory.

Solution

1.  Open user properties in Active Directory Users and computer -> Click on Security Tab -> Advanced Button -> make sure that “Allow Inheritance.. ” Is checked

      2.  Check the user properties in Exchange management console , if Recipient Type Details is showing as legacy mailbox then run the following command in the exchange powersehll Set-Mailbox–ApplyMandatoryProperties –Identity <username>