[bitfolk] mx without bind?

Hi I have a functional mail server on my new VPS. Now I want to propagate mydomainname.com to email servers through the MX record, so that people can find 'me(a)mydomainname.com'com'. The domain registry has default values of 'mailstore1.secureserver.net' and 'smtp.secureserver.net'. I would like them to point at my VPS, but am unaware of the correct strings, which would replace 'mailstore1...' and 'smtp...' above.. I would also like to minimise my sysadmin time, and so would like to avoid to be forced to use bind etc on my VPS. Can anyone help? TIA. Cheers, Max