Tiggr’s blog

I am getting the hang of this thinking about the problems of SMTP and how to replace it.  Ik like Some observations on the IM2000 proposal and spam by Brian Candler.  He observes things in the ideas of Jonathan de Boyne Pollard that I did not and some things that I did too.  Something that I thought was obvious but apparantly was not mentioned by Jonathan is this:

The whole point about sender pays for storage must be that:

1. storage is controlled by sender and
2. this is verified by recipient

The DNS can be used for this by looking up the message stores for the sender’s domain.

For message relays, this means:

1. a mailing list is the originator of all mail it carries, at least at the level of the envelope^wnotification.
2. you can’t forward notifications without rewriting them or wrapping them

Interesting reference today in Bruce Schneier’s Cryptogram, back to an article from February 2004 on the Economics of Spam.  Reversing the economics is one of the (best) solutions: let the sender pay for email, or storage thereof.  This is the idea behind Internet Mail 2000 proposed by Dan Bernstein.