Restore an Entire Exchange Online Mailbox

Overview

Use this section to restore a complete mailbox, including emails, folders, calendar items, contacts, and other mailbox data.

You can restore a mailbox to its original location, to another mailbox, or to an isolated environment for validation.

When to use this

Use mailbox-level restore when:

  • A mailbox is deleted, corrupted, or inaccessible
  • You need to recover all mailbox data to a previous state
  • You want to restore large volumes of data efficiently

For restoring specific items, see Restore an individual mailbox item.

Choose a restore option

  • Restore a mailbox to original location
  • Restore a mailbox to another mailbox
  • Restore a mailbox to an isolated environment
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