Kai Engert <kaie(_at_)kuix(_dot_)de> wrote:
Abstract:
The idea is to assign an additional secret key (salt) to each email user
account. The email sender uses the salt and the message contents to
calculate a hash value and adds that hash value as a new email header.
Lots of extra work for sender.
Your basic system requires senders to verify that they aren't
spamming. It gains nothing.
Seth
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