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A comment on Break free from traditional email - Host your own server. Parent comment

Re:Break free from traditional email - Host your own server by mbrock on Sunday October 22, 2017 @08:43AM (#15526552)
Bitcoin's history involves a plan for combating spam—that's why proof of work was invented.

Hashcash, Bitcoin's PoW game, was intended for use as an email attachment to create a real cost to spam without any micropayments.

"If you want to mail me, prove that you burned five seconds of CPU time."

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Re:Break free from traditional email - Host your own server by kuczmama on Sunday October 22, 2017 @08:54AM (#15526590)
That is really interesting. Do you know of any articles that go into more details?
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