On Thu, Jul 12, 2007 at 07:19:06PM -0700, Marc Perkel wrote: > SPF is rather useless. Spammers can publish SPF records.
Right, they can publish SPF records, so what? You want to know if example.com is coming from a place that mail from example.com is supposed to come from, and SPF tells you that. It has nothing to do with ham versus spam, and gives you better information than just requesting a PTR record. -- Randomly Selected Tagline: "You can test this theory by strapping a piece of buttered bread to the top of a cat (butter side up) and dropping them from a few feet in the air. On the theory that cats always land on thir feet and buttered bread always falls butter side down, they should hover a few inches above the floor and spin constantly." - Theo
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