On Tue, 01 Aug 2006, Theo Van Dinter wrote:

> On Tue, Aug 01, 2006 at 09:24:55AM -0700, John D. Hardin wrote:
> ...
> Well, until greylisting becomes enough of a problem that the spammers change
> their software to queue and retry, thereby eliminating the benefit completely.
Or even simply send spam unconditionally twice or thrice
just to be sure to get through the greylist.

It just needs knowledge how fast you have to give the same
combination of envelope-addresses to the same zombie again.

And THIS would explain why I get lots of spams more than once,
but in 'chunks' of 3 to 6 times the same thing in a few minutes
and then pausing for a long while.

So just by re-arranging the (spam-)address-lists and sending
at least twice the amount of spam, greylisting may be circumvented.

Just an idea, because we currently/suddenly get over 20% more spams
for the last few days.

Stucki

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