1. OWA access with Exchange 2007 CAS server and Exchange 2003 Backend server
2. Accessing Exchange 2003 mailbox from an Exchange 2010 mailbox
3. OWA access with Exchange 2007 CAS server and Exchange 2003 Bac
4. Outlook 2003/Exchange 2003 clients cannot view calendars of Outlook 2007/Exchange 2007 users
5. Server 2003 and Exchange 2007 to Server 2008 and Exchange 2007
6. Exchange Admins having issues accessing other user mailboxes after Exchange 2007 install.
7. Cannot Access Exchange 2007 Mailbox using /exchange VDir
8. user mailbox vs "legacy Mailbox"? (2007 exchange)
9. Exchange 2007 B2 How to Upgrade Legacy Mailboxes to User Mailboxes
10. Can't access Exchange 2003 BE mailboxes from OWA 2007 on CAS serve
11. Is it possible to access a mailbox on the Exchange 2003 system through the 2007 CAS ?
12. Can't access Exchange 2003 BE mailboxes from OWA 2007 on CAS s
13. Use Outlook 2003 to access Exchange 2007 mailbox
14. Exchange 2007 404 error when accessing 2003 mailbox
15. Exchange 2007 Mailbox server and Exchange 2007 CAS - Same Site