spam being sent using my domain

[Corey Edwards]

On Thu, 2007-01-25 at 20:09 -0700, Von Fugal wrote:
> Signing and sending the previous message reminded me. I think a real
> swell answer to the spam problem could involve some kind of
> public/private key signature dealy-o. Something like a per domain key.
> I.E. gmail would sign a portion of the email header with it's private
> key and anyone with the corresponding public key (any smart smtp server)
> would know it was validly from whoever at gmail.com.

You know what would be a great name for it? Domain Keys. 

http://antispam.yahoo.com/domainkeys

Corey