North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: IETF SMTP Working Group Proposal at smtpng.org
On Thu, 22 Aug 2002, Brad Knowles wrote: > At 7:20 PM -0500 2002/08/21, J.A. Terranson wrote: > > > Presenting a computationally difficult problem to a connecting MTA > > moves the requirement for the CPU power to the sender while keeping > > the recipient site unfettered. Let's face it, the spam problem is > > merely one of cost shifting from sender to reciever, and this > > proposal shifts the load back. Any site that wishes to maintain > > the current system of email subsidies to the sender domain need > > only provide a computationally simple token. > > Now this is more plausible. You'd still need something akin to a > PKI to distribute the computationally simple tokens, and you'd need a > way to easily revoke them. But if this was implemented by default in > the standard MTAs, you would go from hundreds or thousands of message > deliveries per minute to five or more minutes per un-authenticated > message delivery. > > This is something that might be worth discussing in the > appropriate forums, such as the SMTP-related working groups of the > IETF. Thank You Brad. I think it is aslo and elegant very cleasn solution to a divisive social issue - the placing of the transmission costs on firmaly of the SELLER, without binding up the innoced receipient, I have very serious deoubts that a sender will even offer you the oppotunity if they get you Ba computationally difficult token.
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