Re: [Asrg] "Mythical" Global Reputation System

John Leslie <john@jlc.net> Sun, 20 December 2009 23:21 UTC

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Date: Sun, 20 Dec 2009 18:21:04 -0500
From: John Leslie <john@jlc.net>
To: Anti-Spam Research Group - IRTF <asrg@irtf.org>
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Subject: Re: [Asrg] "Mythical" Global Reputation System
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Alessandro Vesely <vesely@tana.it> wrote:
> 
>  What are the differences between being vouched for by an MGRS and
>  relaying through an external smart host?

   The biggest difference is that you can use multiple vouching services
but only one "smart host" at a time.

   Thus, when a vouching service screws up, no action is required, MTAs'
reputation services will probably automatically check your other vouching
services and discount the one that screws up.

   There are other substantial differences in that a vouching service
can continue reporting problems to you in a useful format even while you
_don't_ meet their vouching criteria, which greatly simplifies your
clean-up process.

   For most of us, the most likely clean-up problem is botted computers;
and being able to convice a user that their computer _really_is_ botted
is not necessarily an easy task...

--
John Leslie <john@jlc.net>