Have just done a migration of Std Server (with 2 Domain Controllers and 1 Exchange) to SBS 2008. Migration went fine. Moved all legacy mailboxes across to the new Exchange 2007 server, again all went fine and no errors.
2 Users cannot open thier emails. Outlook 2000 comes up with the error "Unable To Open Your Default Mail Folders. The Attempt To Log On To The Microsoft Exchange Server Computer Failed". Other clients using Outlook 2000 work fine. I then logged into a machine that was running Outlook 2007 as the problem users and they opened the mailboxes fine.
On the 2 problem machines I have tried reseting TCP/IP, Winsock, Checked all RPC entries are there and also recreated the mail profiles.
Other users who are working fine are sometimes getting prompted to login when they have outlook open, this also happens to the 2 users who cannot open thier mailboxes through Outlook 2000 but can through 2007. Could this be related?
The Exchange 2003 computer is still on the network and the stores are still mounted but the Mailboxes are not there, they are stored on the Exchange 2007 box (SBS 2008)