Re: [Exim] Checking against "seen" Message-ID:'s to drop bou…

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Autor: Christian Balzer
Datum:  
To: exim-users
Betreff: Re: [Exim] Checking against "seen" Message-ID:'s to drop bounces
David Brodbeck wrote:

>> From: Christian Balzer
>
>> Whereas with greylisting the chances of
>> it never making it through are quite high, so that qualifies
>> more in the "hurting" department in my book.
>
>At least until they figure out they just have to run the same list twice,
>with an hour delay in between...
>

Oh, this is an arms race, to think any different would be foolish.
But unless they send that list twice from well trusted mail servers,
chances are that their compromised trojans/zombies/proxies have made
it into a global or local blacklist. Which is the the other, quite
effective half of greylisting.

Regards,

Christian Balzer
--
Christian Balzer        Network/Systems Engineer                NOC
chibi@???       Global OnLine Japan/Fusion Network Services
http://www.gol.com/