On Mon, 27 Feb 2006, John Kelly wrote:
SPF has complexities galore that are an impediment to adoption, but there
are enough people checking SPF that since I adopted it, my forged bounce
problem (and by implication forgery of my domain) has to almost nothing.
And the spammers just move on to forging domains without SPF records.
If that were to happen, it would be a resounding success for SPF. (And
I would just start blocking domains without SPF records.)
However, what spammers are really doing is adding SPF records to their
own throwaway domains. This in itself show that spammers are feeling
the pressure. It then requires yet another layer of complexity to track
reputation of domains once the forgeries are eliminated.
--
Stuart D. Gathman <stuart(_at_)bmsi(_dot_)com>
Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.
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