2011/11/23 Mark Martinec <mark.martinec...@ijs.si>:
> A concept of 'ongoing conversation' or 'replied to' is implemented as
> a 'pen pals' feature in amavisd, when it is used in place of spamd
> to call SpamAssassin. The idea is to automatically contribute some negative
> spam score points to ongoing conversations - based on envelope sender
> and recipients, as well as Message-ID and References or In-Reply-To
> mail header fields.


I use amavis and some time ago I talked with you about a patch for
virtual users in amavis !
but I missed that ! good point !

The idea works like greylists but greylist just whitelists when a
sender-IP-recipient hits more than a threshold. Greylists do great job
stoping robots but there are spammers with well configured MTAs who
tries and tries and tries and bypass greylists. For that situation
this solution can aid greylists in the way that conversations also
need to be replied in order to get whitelisted

Cheers

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