Payments as an answer to spam

[Derek Atkins]

"Arnold G. Reinhold" <reinhold at world.std.com> writes:

> If hashcash proof of work is combined with an easy to use whitelist,
> the hash stamp is only needed when communicating with strangers. For

That's not sufficient.  Spammers regularly forge email addresses.
I've received spam apparently from people I know, but it's clearly not
from them.  So, just using white lists on the "From: " address is not
sufficient.  You still need some content filtering (either via a coin,
a signature, or something easily-verified).

-derek

-- 
       Derek Atkins
       Computer and Internet Security Consultant
       derek at ihtfp.com             www.ihtfp.com

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