Post Mail Setup?

Hi
How would i setup postmail to work with my domain?
the domain is ryanteck.org.uk and my domain people say they have set the email to redirect to my server ip

Do i need to unblock a port for it to work?

Thanks ryan

what is this postmail that you are talking about?
are you talking about http://www.virtualpostmail.com/ ??
if you have a spec
your ip address is ryanteck.org.uk >86.5.248.143
and you have a mx record for the same server.
so ..
and why to hell does you http port is ssh port?