You must be a global administrator in your organization or a member of the Organization Management role group in your Exchange Online organization to enable autoexpanding archiving. For more information, see the Inactive mailboxes and autoexpanding archives. If autoexpanding archiving is enabled on an inactive mailbox, the only way to recover data is by using the Content search tool in the Microsoft Purview compliance portal to export the data from the mailbox and import to another mailbox. That means if you enable autoexpanding archiving for a mailbox and the mailbox is made inactive at a later date, you won't be able to recover the inactive mailbox (by converting it to an active mailbox) or restore it (by merging the contents to an existing mailbox). Administrators also can't adjust the storage quota for autoexpanding archiving.Īutoexpanding archiving prevents you from recovering or restoring an inactive mailbox. Before you enable autoexpanding archivingĪfter you turn on autoexpanding archiving for your organization or for a specific user, it can't be turned off. Learn details about signing up and trial terms.

Start now at the Microsoft Purview compliance portal trials hub. If you're not an E5 customer, use the 90-day Microsoft Purview solutions trial to explore how additional Purview capabilities can help your organization manage data security and compliance needs.

Office 365 e3 email archiving