Hi ,

I have Qmail server running on fedora core 6 ,I want mails from my domian should get royal treatment no other domain mail filter should send mail from my domain to spam or junk ,I am also ready to pay Can any one help me on this topic.

if every mail server were configured the same way - implementing the same white / black (and possibly grey) listing methods
and if those lists were generated by some central system - then probably there could be a way, but this is not the way it works

how other people / companies configure the mta's is actually none of yours... they have the freedom to treat any domain as they wish. (in a lot of cases there are also things like user defined white/black lists)
if your domain has been blacklisted, them most likely for a good reason.

perhaps though you would like to check if it's the ip or the domain that has been blacklisted, and find out for what reason.
hint on the side: dynamic ip's are not (that) trustworthy - just in case your mta is running on a dynamic ip allocation.