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FAQ: Configuring Exchange 2007 to Send Outbound Email through another SMTP Server

This article is also available for Exchange 2013, Exchange 2010 and Exchange 2003.

Send Connectors allow Exchange Server to route all outbound email through another SMTP server. This can be desirable in certain configurations or environments. For an explanation of these situations, please see Configuring Exchange Server to Send Outbound Email when Exchange Connector is used to Retrieve Email.

To configure a send connector:

  1. Open the Exchange Management Console and navigate to Organization Configuration, Hub Transport, Send Connectors.

    Exchange Send Connectors
  2. Right-click in the list in the centre pane and select New Send Connector.
  3. In the wizard, type a name for the connector, and select "Custom" under "Select the intended use for this Send Connector". Click Next.

    Exchange New Send Connector
  4. On the Address Space page, click Add. Type * as the domain and check "Include all subdomains".

    Exchange Add Address Space
  5. Click OK then Next.

    Exchange Send Connector Address Space
  6. On the Network settings page, select "Route mail through the following smart hosts".

    Exchange Send Connector Network Settings
  7. Click "Add" and enter either the IP address or name of your ISP's mail server.

    Exchange Edit Smart Host
  8. Click OK and Next.
  9. Under "Configure smart host authentication settings", you will need to select the correct settings depending on your ISP. These would be the same you would configure in Outlook if you were using a non-Exchange configuration – you may need to consult your ISP's documentation.
  10. On the Source Server page, click Add and select the Exchange Server.

    Exchange Send Connector Source Server
  11. Click OK and Next.

    Exchange Send Connector Finish

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