Add an Exchange 2010 Send Connector to use a Smart Host

If you have installed Exchange Server 2010 and want to send outgoing mail through your smart host or non-exchange perimeter server which already has MX records in DNS associated with the smart host, then add a Send Connector to Exchange as follows:

  • Open your Exchange Management Console.
  • Expand +”Organization Configuration” and select the sub-item named “Hub Transport.”  Select the tab entitled “Send Connectors.”
  • From the menu on the right side, select the link for “New Send Connector” and the New Send Connector wizard dialog will appear.
  • Enter a “Name:” such as “OutgoingHost” and under “Intended Use for this send connector” select “custom” from the list box and click Next.
  • Click Add the type “SMTP” and the “SMTP Address Space” will appear.  Under “Address:” insert an * (asterisk), check the box next to “Include all sub-domains” and leave the Cost: as 1.  Click the OK button to close the Address space, and then Click the NEXT button.
  •  Network Settings appears.  Click the radio button next to “Route mail through the following smart hosts”
  • Click +Add and either enter the IP address of the smart host server, or select the radio button next to Fully qualified domain Name (FQDN), and enter the of your smart host in the input text box, such as Mail1.MySmartHostnet.  Click OK to close this dialog, and Click NEXT.
  • Configure smart host authentication settings will appear.  For many servers that won’t require exchange authentications, you can select “Basic Authentication” and input the username and password of the smart host’s postmaster or other account that has access to the postmaster outgoing smtp transport.  Click Next, Next, New and Finish buttons.
  • Tidy up by right clicking this new “OutgoingHost” Send Connector, and left click on properties.  Under the “General” tab, insert the fully qualified “internet” hostName.domain that your server will echo in response to HELO or EHLO when connecting to the smart host, for example: (not your .lan or .local FQDN).  Change the maximum message size if you like.  Click Apply, and click OK.
  • Test it by logging into you administrator account using OWA interface and send a test message to yourself at hotmail or gmail or yahoo.
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