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How to Revoke a Mailbox Access Token


MS Exchange or Office 365 Mailbox access token revoking is sometimes required on RI Sync Engine troubleshooting, specifically if Sync was misconfigured or a user account was moved to another RI tenant.  

To revoke RI Sync access Token for Office 365 mailboxes


Depending on your MS Office 365 or Exchange configuration, the access token revoking procedure might require contacting your local system Admin. See this Microsoft article for more information


1. Log in to, click the circle with initials in the upper right corner and select View account

>>> Click to see a screenshot <<<


Or alternatively open the direct link


2. Select App permissions in the navigation pane on the left

>>> Click to see a screenshot <<<


3. Click Revoke under Revenue Inbox the the main pane

>>> Click to see a screenshot <<<


4. Log out from RI Add-In and then log in again


Now the access token has been revoked and you need to activate RI Sync engine afresh providing all required permissions to resume its functioning.

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