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A comment on Show HN: Veropost – Charge people to send you email.

Re:Show HN: Veropost – Charge people to send you email by jkbbwr on Thursday April 06, 2017 @09:06AM (#14050119)
To be fair, this might be an actual use case for proof of work. Do some CPU work that is trivial to check but expensive to compute. Set the difficulty of your inbox and just have your SMTP server bouncy any email without an attached bit of "work". I can wait a few minutes for an email to send.
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Re:Show HN: Veropost – Charge people to send you email by tuxxy on Thursday April 06, 2017 @10:04AM (#14050573)
Something like this was already done with hashcash.

https://en.wikipedia.org/wiki/Hashcash

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Re:Show HN: Veropost – Charge people to send you email by jkbbwr on Thursday April 06, 2017 @06:25PM (#14055238)
Oh look. A good idea.
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Re:Show HN: Veropost – Charge people to send you email by agora778 on Thursday April 06, 2017 @09:08AM (#14050130)
you do this by acquiring bitcoins right? :)
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