When that magic day comes, my incoming mail server will look at the headers of the incoming email.

FORBES: Authenticate This!

Their advanced sandbox technology, Deep Discovery, is available as an out-of-band gateway device (Deep Discovery Inspector) to scan all incoming traffic and a stand alone server (Deep Discovery Analyzer) to accept suspicious executables from email gateways and other sources.

FORBES: Security Intelligence Enters Mainstream

This is not the same as having a weblog or e-zine sitting on a public server which does not filter incoming requests.

BBC: Opening up the libel boundaries