Spam Experts Help

Configuring Outbound Filtering with Exchange Online (Office 365)

Follow these two steps:

Create Outbound User in Spam Experts

  1. Log in to the Spam Experts control panel as an administrator.
  2. Select General > Domains Overview then click on the relevant domain to open the Domain Level Control Panel.
  3. Select Outgoing > Manage Users.
  4. Select the Authenticating Domain tab and ensure that the domain you are using with Exchange Online is shown. Enter a secure password and click Add.
  5. Once the domain is added, click on the downward-facing arrow and select Edit.
  6. Ensure that Re-authentication permitted is ticked.
  7. Click Save.

Set up a Transport Rule in Exchange Online

  1. Log in to the Exchange Admin Center.
  2. Click Mail Flow > Connectors.
  3. Click on + and add a connector From > Office 365 to Partner Organization.
  4. Select Only when I have a transport rule set up that redirects messages to this connector.
  5. Select Route messages through these smart hosts and add port25.smtp.antispamcloud.com.
  6. Ensure that Always use Transport Layer Security (TLS) to secure the connection (recommended) and Issued by a trusted certificate authority (CA) are selected.
  7. Validate the connector (e.g. using recipient no-reply@antispamcloud.com) and Save.
  8. Click on Mail Flow > Rules.
  9. Click on the + (plus button) and choose Create a new rule..
  10. Enter a name for your rule (e.g. Route outbound via Spam Experts).
  11. Click More Options.
  12. Set Apply this rule if... to The sender's domain is....
  13. Specify the domain entered in the previous step (Creating the Outbound User).
  14. Set Do the following... to Redirect the message to > The following connector and select the connector created earlier.
  15. Click Add exception.
  16. Select The recipient > is external/internal.
  17. Choose Inside the organisation.
  18. Save the rule.

Once this is done, any traffic matching your outgoing sender domain should be relayed via the transport rule and be processed by the filtering servers.