There are many reasons why you (as an administrator) need to export Exchange mailboxes or other resources to PST. Let’s go through the list of possible reasons. You need to decommission the server ...

You can follow the below methods to restore Exchange mailbox database. Note: Before you can start ... When this is done, copy the files restored from the previous server or restored files, including ...

which effectively allows an organization to have up to 16 replicated copies of an Exchange Database (EDB). With Exchange 2003 and prior, there was only a single EDB that held a user’s mailbox.