[Greylist-users] I need graylisting stats
scott at spamwolf.com
Sun Jul 11 10:50:35 PDT 2004
At 12:14 PM 7/9/04 -0400, chris at chrisbaker.net wrote:
>Some half-wit sales people were in our office today trying to sell
>someone on anti-spam solution. We have been using graylisting here
>for about three months, and it has been outstanding.
>Unfortunately, I don't have any real statistics. How do I get statistics? I
>certainly don't want these bozoes touching our e-mail system, because
>I know some of the half-wits who work for this company from past jobs.
It's been a while, but I did take some statistics.
After turning on greylisting, the amount of spam received was reduced by 85%.
The number of blocked spams is about %95 however, because once you start
blocking, some spammers try harder.
Honesty may be good science but it's not good marketing, so I'd say
"Greylisting blocks over 95% of spam".
I have numbers to back that up, which I'd be happy to provide on request.
I bet I can offer a superiour service to them for 1/2 the price,
if it looks like they're making the sale, ask the decision maker if he's
done any comparison shopping.
BTW - I recently repeated the experiment with a much smaller sample,
and was rather surprised to see that greylisting /still/ blocks about 95%,
with a total reduction of about 85%.
Even after several months, most spammers haven't adapted to greylisting.
Scott Nelson <scott at spamwolf.com>
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