On Fri, 4 Dec 2009, Charles Gregory wrote:

On Fri, 4 Dec 2009, John Hardin wrote:
 Both would have to be done any time a new address was added to the mailing
 list. And there would have to be some watchdog ensuring the MSP doesn't
 relax the policy over time.

Uh-huh. For a -4 in my mail filter? They oughta! :)

 It's a great idea. The problem is, how do you get mail service providers
 to do this? What causes them loss of revenue if they _don't_ do it?

The fact that recipients change their SA score from negative to positive (or better still, as argued here, the negative *default* is removed from the distribution, so that millions of mail servers immediately 'downgrade' the mail's acceptability).

I had thought about that, but I suppose I didn't give the SA community enough weight. Are there enough users of SA (including the customers of those who repackage it commercially) who _maintain their systems_ (i.e. keep up-to-date with new versions and run sa_update regularly) such that the SA devs adjusting the scores centrally for whitelists would have an aggregate effect across all those users similar to the Big Players doing what I suggested?

If the majority of SA users install it and forget about it for five years (including not running sa-update) then SA probably can't effectively be a cattle prod with which to encourage proper behavior by MSPs.

--
 John Hardin KA7OHZ                    http://www.impsec.org/~jhardin/
 jhar...@impsec.org    FALaholic #11174     pgpk -a jhar...@impsec.org
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