On 01.07.09 11:26, rich...@buzzhost.co.uk wrote:
> And there is the argument that anything other than the final IP can
> easily be forged or inserted into the headers rendering a great many
> costly DNS checks. Swings and roundabouts.

if a spammer forges Received: line so the checked ip is in blacklist, it
only will add more points to catch the spam. Very effective in cases of
low-scoring spam.

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