Re: [Fwd: Last Call: draft-hoffman-dac-vbr (Vouch By Reference) to Proposed Standard]

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At 06:23 04-02-2009, Alessandro Vesely wrote:
Also in more mature markets, not all of the existing companies and universities running their own mail servers will be eager to spend $5000/year on a vouch. In addition, the

The cost for email certification starts at around $1200 (950 Euros) a year.

At 06:55 04-02-2009, Dave CROCKER wrote:
Macroeconomic analysis -- especially predictions about the directions an economic process will develop towards -- is a poorly understood topic of expertise, even among experts... as we are unfortunately seeing demonstrated in the global economy.

One of the characteristics of Internet Mail is it doesn't require prior arrangement between senders and receivers. If email certification is widespread, it can have an impact on the model.

What is the IETF track record that should give us any faith in this community's ability to make such predictions. Absent that track record, we are creating the risk that we will refuse technologies erroneously.

That's where operational experience come into play. It's easier to assess a technology based on that. A specification sometimes contain guidance about the technology, for example, a note about trusting third parties with operational decisions.

If the technology is deployed by 100% of the community providing professional email operations, both on the sending and the receiving sides, as Dave expects, the rest of the world can either follow the practice or else bear the consequences. As the IETF community does not have any track record on its ability to make economic predictions, should it restrict itself to a assessment of a technology without looking at whether the benefits outweigh the costs which may only affect a fringe of the Internet community? The cost of deployment has been taken into consideration in the design of some specifications published on the Standards Track.

Regards,
-sm
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