When redirecting Exchange data to a different server, the following must be true on the recovery server..
- The Storage Group/s name must be the same as the original server.
- The Mailbox Store/s and the Public Folder Store must also have the same name as the original server.
- If you are restoring the whole Storage Group - and the original has 3 Mailbox Stores, the destination must also have 3 Mailbox Stores and again, they must be named the same as the original server.
In BE - choose Exchange redirect, Enter in the Recovery Servers name.
In Settings, Exchange, Make sure No Loss Restore is unchecked.