Discard Email License For Free

In the admin center, go to the Billing > Licenses page. Select a product. Select the check boxes of the users for whom you want to unassign licenses. Select Unassign licenses. In the Unassign licenses box, select Unassign.

When a license is removed from a user, Exchange Online data that is associated with that account is held for 30 days. After the 30-day grace period, the data is deleted and can't be recovered.

Office 365: Uninstalling Office and Deactivating Licenses Open the Start menu. Click Control Panel. Select Programs, or Programs and Features. Select Uninstall a program. Search for the Microsoft program you wish to uninstall and select it. Click Uninstall.

If you remove a user's license, the user mailbox will no longer be able to sign in and use Exchange Online or Office 365. The user mailbox will remain in Exchange Online until it is deleted, permanently removed or purged by the Office 365 admin. You can reassign a license to the user and make the mailbox active again.

In the admin center, go to the Billing > Your products page, and select the Products tab. Select the subscription from which you want to remove licenses. On the details page, select Remove licenses.

When you remove the license, all that user's data is held for 30 days. You can access the data, or restore the account if the user comes back. After 30 days, all the user's data (except for documents stored on SharePoint Online) is deleted permanently from Office 365 and can't be recovered.

Similarly, removing the Exchange Online license will automatically remove the Exchange mailbox from the user. This article details how you can remove an Office 365 mailbox (but still keep the user account it's assigned to).