Satya's blog - Email stamps

http://news.bbc.co.uk/2/hi/technology/4684942.stm

That's just wrong.

All the messages that are paid for will bear a stamp saying they are authentic.

I wonder how easy it will be to forge? All these solutions are run *by* some random company *for* the big names. What happens when random company commits various acts of corporate stupidity? Or doesn't like your company (your company shouldn't be running through a Big Name webmail provider anyway)? Or doesn't like your ideology, or holds your ISP to ransom for "bandwidth charges"?