Re: MTA mints tokens

Bernhard Kuemel wrote:

> Hi hashcash!
>
> If MTAs added tokens to emails this could allow sooner deployment of 
> hashcash while users still use non hashcash MUAs. Small MTAs can take 
> the load while bigger systems may need additional computing resources. 
> A dedicated minter server cost roughly 0.06 cent/minute or 18 
> minutes/cent. I guess most people would not mind paying 0.06 or even 1 
> cent per email so this cost can be included in the ISP costs. To avoid 
> spammers abusing this service the number of emails/day can be limited. 
> Heavy email users have to pay extra or make hashcash themselves. 
> Occasionally exceeding the limit may get emails delayed until token 
> computing power get's available at off peak hours. Minting can also be 
> ordered by email priority.

for practical working hashcash based stamp filter see: www.camram.org 
especially look at the zombie calculator for determining size/cost of stamp.

>
> Talking about wasting resources reminds me I'd rather like to pay real 
> money to the receipient than for wasted resources. But anonymous ecash 
> may be difficult in the days of big brother.


it also has lots of failure modes which can either prevent delivery of 
e-mail or encourage delivery of spam.


--- eric