Re: misconception in SPF

"John Levine" <[email protected]>
Newsgroups gmane.ietf.asrg
Message-ID <[email protected]> 
>No. I know some do, but I think it's a minority. (Among commercial spam-filters used mainly
>by corporations, that is. It could be that some of the larger ISPs block SPF fails outright,
>which would skew the picture.)

No ISP I know does that.  The false positive rate is much too high,
since publication of a -all record is highly correlated with
assertions that all forwarding is evil, which is of course just wrong.
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