I have recently installed exchange 2007 on a box on my domain. I have tried to re-direct OWA users through my 2007 box to there mailboxes on my 2003 box until I replicate them over.
I followed the procedure on MSExchange.org called Transitioning from Exchange 2000/2003 to Exchange Server 2007 (Part 2).
I now get the folliwing error messages:
Outlook Web Access could not find a mailbox for ***. If the problem continues, contact technical support for your organization and tell them the following: The mailbox may be stored on a Microsoft Exchange 2000 or Microsoft Exchange 2003 server, or the Active Directory user account was created recently and has not yet replicated to the Active Directory site where this Client Access server is hosted.