What follows is a set-up for a shared (virtual) hosting service. In this case it uses settings for the virtual shared hosting service of Hostpapa.com (whom I highly recommend).
Use these settings to obfuscate the hosting server's incoming and outgoing addresses. Which ordinarily would look something like hp44.hostpapa.com
Why hide the incoming and outgoing server addresses of your virtual host? Because you have to provide this information to your customers and it just looks less than professional to provide them with server addresses of a shared hosting platform no matter how good the service actually is.
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