Channel Register

Post: If you can detect it, block it!

Lee Mulcahy

If you can detect it, block it! 

In Most spam comes from just six botnets

I'm sure I'm missing something here, but if these agencies no the precentage of spam from each botnet, they must be able to identify the botnet that sent each e-mail. If you can identify it, why can't you block it. I know they're detecting at an endpoint, but if they can identify the source, why can't the ISPs?

Lee