Follow the steps below to configure Office 365 to route outbound mail through SecurityGateway.
- Log in to the Microsoft Office 365 admin center.
- Click Admin / Exchange / Exchange Admin Center
- Select Mail Flow > Connectors
- All currently existing connectors for your organization appear.
- From: Office 365
- To: Partner organization
- This forwards your outbound email to SecurityGateway.
- The add smart host dialog box appears.