Re: [Exim] Fixing SPF Forward Problem by Reply-to: Hack?

Fred Viles wrote:
>
> | Hi Edgar, on Sun, 21 Mar 2004 20:43:55 -0600 you wrote:
> |
> | > Here is another of my nieve 'fixes' for these things...
> | <snip>
> | > start forcing ALL email they accept to have 'rDNS == IP A == HELO
> | > name',
> |
> | Thanks! I'm glad I'm not the only one who's thinking this.
> |...
>
> I can only assume that you guys have never tried this on a business or
> public (ISP) server. The false positive rate is *way* too high for this
> test to be practical for blocking or quarrantining.
>
>
> It could be used for tagging as a factor for SA, though.
>
I keep track of such information at an ISP level as an ISP, that is about
all as you are correct, I cannot 'put this into full effect' as of now.
But just because I cannot do so currently, does not mean that I should not
advocate that it should be used.
And, I said in several other posts, MY user base is too small to force this
change, however, if several of the large ISP's (AOL, MSN, Comcast?) do
this, people WILL follow. Why do you think SPF is growing in popularity,
because AOL and a few other large installations say they are going to use
it.
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