A mailbox is a storage location where email messages are kept. When you back up a mailbox to a PST file, you create a copy of the mailbox on your computer. This allows you to access the mailbox messages if the original mailbox is unavailable. You can also use a PST file to import messages into a new mailbox.
To back up a mailbox to a PST file, you need to use the Export-Mailbox cmdlet. The following example exports the …
