Event Type: Error Event Source: MSExchangeIS Event Category: General Event ID: 9562 Date: 4/1/2008 Time: 9:03:45 AM User: N/A Computer: xxxxx Description: Failed to read attribute msExchUserAccountControl from Active Directory for /o=xxxx5/ou=First Administrative Group/cn=Recipients/cn=xxxx. Also tried creating a new mailbox store and failed: Event Type: Error Event Source: MSExchangeIS Event Category: General Event ID: 9519 Date: 4/1/2008 Time: 11:26:42 AM User: N/A Computer: xxxxx Description: Error 0x80004005 starting database "test\test1" on the Microsoft Exchange Information Store. I have checked that all is pointing to the correct DCs. Users are able to send and recieve email, I just can't create anything in Exchange.