Creating an Office 365 Outbound Connector


The instructions below include information about tools that are not owned or managed by TitanHQ and are only intended as a guideline to help you. As such, the information may be subject to change without us knowing.

If you notice anything incorrect, please email and let us know.

Follow the steps below to create a smart host outbound connector between your Office 365 and SpamTitan.

  1. Log on to your Office 365 Exchange Admin Center (EAC).

  2. Click mail flow in the left menu.

  3. Click connectors in the top menu to view your connectors.

  4. Click the add icon ST-701-office365-add-button.jpg and the 'Select Your Mail Flow Scenario' window displays. Complete the fields as shown:

  5. Click Next and the 'New connector' window displays.

    1. In the Name: field change the connector name to a meaningful name, e.g. SpamTitan Outbound.

    2. In the Description: field enter a description for this connector, e.g. Connector for SpamTitan Outbound.

    3. Uncheck Turn it on. You can turn this connector once you are ready to cutover mail flow.

    4. Click Next.

  6. In the 'When do you want to use this connector?' window:

    1. Select Only when email messages are sent to these domains.

    2. Click the add ST-701-office365-add-button.jpg icon and the 'add domain' window displays.

    3. Enter * in the dialog box and click OK.

  7. Click Next in the 'When do you want to use this connector?' window.

  8. In the 'How do you want to route email messages?' window:

    1. Select Route email through these smart hosts.

    2. Click the add ST-701-office365-add-button.jpg icon and the 'add smart host' window displays.

    3. Enter the hostname or IP address for your smart host, e.g.

    4. Click Save.

    5. Repeat steps 1-4 for each smart host you want to add. Click Next when done.

  9. Click Next on the following screen to accept the default TLS settings.

  10. A summary page displays the information you have entered above. Verify the information is correct and click Next.

  11. In the 'Validate this connector' window you can enter an external email address (outside your organization) to test the connection:

    1. Click the add ST-701-office365-add-button.jpg icon and the 'add email' window displays.

    2. Enter an external email address, e.g.

    3. Click OK.

  12. Click Validate and a test email will be sent to the address provided. Click Close.

  13. Click Save in the 'Validation Result' window.

  14. When you are ready to start routing mail through SpamTitan, ensure your connector status is 'On'. To do this, go to mail flow > connectors and highlight this connector and click Turn it on.

  15. Your connector is now active and you can start routing outbound mail through SpamTitan.