At 15:54 2004-03-02 -0700, LuKreme wrote:
One could still make use of DNSBLs after the SMTP stage - performing
lookups and inserting a message header identifying the DNSBLs which the
sender host was determined to be listed in.
That is what SpamAssasin does, simply has a score level for each RBL
listing. This also allows you to adjust scoring, say set Spews at a low
0.5 and cbl at 3.0, for example. Change to suit your needs.
Yes, though that means checking all the DNSBLs when any one of them may
have been enough. And, you've accepted the complete message via SMTP at
that point.
---
Sean B. Straw / Professional Software Engineering
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