Re: Spam passing greylisting.

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Dave Lists wrote:
> Hi all,
> Everytime I mention greylisting I fear I'll start another arguement,
> so if you are against greylisting in concept or practice please ignore
> this thread.
> For those of you using it, are you finding more and more spammers are
> passing through greylisting? Example:
>
> X-Greylist: delayed 364 seconds by postgrey-1.21 at wedmore; Sun,
> 05 Jun 2005 17:31:21 BST
> Received: from 85-250-125-41.bb.netvision.net.il
> (85-250-125-41.bb.netvision.net.il [85.250.125.41]
>
> Now this system retried about once every 2 minutes, until it got
> through. Are you finding this happening to you? Is there anything we can
> do other than increase the delay?
>
> Dave.
>
>
>
Greylisting is only effective against spam sources that do not retry
after a 450. Any server which retries for a significant period of time
will get through.

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