Just check the "additional headers" checkbox in the Universal Email settings. It looks like they are using that in their test script. Leave the rest of the settings blank.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.