# Archiving Messages Using the Exchange Mailbox

What is and is not protected depends on how you configured the Exchange user mailbox plan for the User Mailbox, or the Exchange journal mailbox plan for the Journal Mailbox and the ContentStore Mailbox.

## User Mailbox

What is Archived by Default

- Primary mailboxes

- Disabled mailboxes

- Email messages

What Can Be Archived

- Archive mailboxes

- Stubs

## Journal Mailbox

What Is Archived

- All journal mailboxes that are included in the subclient. This includes journal mailboxes that are configured using premium journaling.

What Is Not Archived

- Journal mailboxes that are not included in the subclient.

## ContentStore Mailbox

What Is Archived

- All journal mailboxes that are included in the subclient.

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