[Greylist-users] Microsoft and Greylisting
mjd at digitaleveryware.com
Fri Feb 6 08:16:11 PST 2004
> I predict that if Microsoft plays this game, our greylisting will be much
> less effective.
Greylisting is still a great tool even if Microsoft does it. Remember,
everyone can set their own unique timeouts. If everyone uses different time
values the only way to get through is to retry a couple times. Spammers use
every bit of bandwidth they can steal so doubling/tripling whatever is a good
thing (I do my rejects at the end of the data phase).
Also, remember blacklists are important too. By using non greylisted
honeypots to catch spam and update blacklists, spammers ip addresses can be
already in blacklists when the greylist time delay expires -- no problem.
I can see some benefit in Microsoft doing it. It will cause people to
properly setup their MTAs to retry.
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