Idiot suggesting blocking countries etc..

Obviously a home user suggesting this. It's pretty much impossible to tell where your "Ham" is going to come from. You can't block countries and expect the botnets which send spam to just, by chance, be within them! This guy needs to read up some whitepapers.

As for this solution, it's still far from the norm - with managed services why would you bother with yet another "Old" MTA style offering? It makes no sense letting the spam come all the way into their network. The words "Horse" "Dead" and "Flogging" all pop into mind.