How to authorize the Microsoft 365 tenants in Email Security.Cloud portal

Products

• Email Security.cloud

Issue/Introduction

This document describes the steps to authorize the Microsoft 365 tenants in Email Security.Cloud portal

Environment

Email Security.cloud

Resolution

You can use the Microsoft 365 Authorization table in Email Security.cloud (ESS) to mark legitimate X-OriginatorOrg identifiers as authorized.

The table lists Microsoft 365 Organization IDs that do not match a domain listed under My Domains or Third-Party Domains in Email Security.cloud (ESS).

Use the below table to review, authorize, add, or remove organization IDs.

• Navigate to Platform>Outbound Routes>Hosted Email Services as shown in the below screenshot.
• In the Service list, locate the Microsoft 365 row and click the Configure button. The Microsoft 365 Authorization table appears.
• Review the entries in the authorization table and take one of the following actions for each entry in the table.
  - If you recognize an organization ID and want Email Security.cloud to relay email from that tenant, select Authorize.
  - If you do not recognize an organization ID, do not authorize.
  - If a known Organization ID is missing from the table, enter the tenant's Organization ID in the input field above the table and click Add.

Next steps : Monitor the authorization table regularly. Remove any entries that are no longer required. Report suspected abuse to Microsoft.