Postini Anti-Spam

My ISP filters incoming e-mail through Postini.
It catches a LOT of spam and holds it on a server so I can give it a quick scan when I want to and delete/forward to my inbox as I want.
Saves me a lot of time.
Anybody else here use it?

the isp that my father owns uses it, though they raise prices regularly so we are looking into other companies.