ietf-asrg
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Re: [Asrg] 6. Email Path Verification

2003-09-15 08:11:38
On Mon, 15 Sep 2003 08:57:41 -0400 
Eric S Johansson <esj(_at_)harvee(_dot_)org> wrote:
Scott Nelson explained:
At 12:38 AM 9/13/03 +0100, Jonathan Morton wrote:

You assuming that the costs camram puts on a spammer are financial.
They are but only indirectly.  Camram imposes a time penalty on
sending messages.  Given a three second stamp, T1 data path yields a
140X slowdown for a spammer.  Add a couple of bits to the stamp and
the slowdown is now 560X.  In the spam world, revenue is a function of
volume.  Slow them down and you reduce their revenue. Slowly it down
enough and you end up with reducing or eliminating profitability.

Translation: only one-off single-addressee messages are cost effective.
Bulk mail of any form, be it spam, mailing lists or other mass
broadcasts are penalised.

-- 
J C Lawrence                
---------(*)                Satan, oscillate my metallic sonatas. 
claw(_at_)kanga(_dot_)nu               He lived as a devil, eh?           
http://www.kanga.nu/~claw/  Evil is a name of a foeman, as I live.

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