This has nothing to do with the domain used on the shared reseller servers. What you are seeing is the reverse DNS entries for your IP address. To have this changed, open a ticket with your resource number (hosting package number), and the ip you want changed, and what you want it to reverse to. Any IP's that we don't have setup to reverse to anything in particular, according to standards (RFC typically) should reverse to *something*, so you can see how that reverse format is devised quite simply, mimicing the in-addr.arpa. configuration. Once a reverse pointer is setup for your domain, for that IP address, it will resolve forwards and backwards to the domain/hostname of your choice.
*ALSO* please *DO NOT* open half a dozen tech tickets/forum threads in inappropriate areas for assistance, it took me 5x longer to run around and close all of the duplicate threads then it did to actually look at this one, see the solution, and answer it. Multiple tickets/emails/threads will make us work *SLOWER* not faster, if you've got an issue, file it once

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