From: Len Conrad (LConradGo2France.com)
Date: Mon Jan 03 2005 - 10:15:09 CST

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>
>So like C/R, it doesn't scale initially

false, greylisting, postgrey, handles huge volumes well.

>, but unlike C/R it shifts the
>problem to the senders' servers?

greylisting is NO problem for correctly setup, legit servers. As with every
restriction, greylisting will expose some legit servers that are screwed up.

> I'm trying to get a gut feeling for
>what people think, instead of "Ooh, what a cool idea!".

greylisting is dramatically effective against subscriber networks that are,
planet-wide, thoroughly infested with infected machines that do
direct-to-MX abuse. As these machines aren't real MTAs with defer/retry
features, they get massacred by greylisting.

In order or restrictions, run greylisting second and SAV last.

Len

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