He was talking about using a proof of work for anti-spam purposes.
That requires support at both ends. Encryption and signatures also
require support at both ends.
For all those reasons I think that secure and anonymous email needs a
new protocol. It should
not be patched onto SMTP. People have been trying to do that for 20
years and secure email is
still rare.
Confidant Mail also has a listserv, so you can run a mailing list behind
Tor with it. The users have
to download the software, but that's true of any secure mail option, and
mine is easy to set up on
the client side.
Mike
That email system, with built in Tor support and proof of work based
anti-spam, has already been built.
Get it here:
http://www.confidantmail.org
On the website it says that it is "non-SMTP", but naif's requirement was to
sent out SMTP mail in the end, wasn't it? So how would that work?
Sincerely,
Malte
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