spf-discuss
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[spf-discuss] Re: Revising SOFTFAIL

2008-01-05 11:16:52
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David Woodhouse wrote:
On Sat, 2008-01-05 at 09:47 -0700, Edmig wrote:
But it does have to correlate with the IP address used by the sending
host. Which  raises the question again -  why not just use the  HELO
name to authenticate an incoming IP address?

No reason. See http://mipassoc.org/csv/

Works just as well as SPF, giving you an authenticated label which you
can use in your reputation database. [...]

Except that it doesn't differentiate between multiple domains served by a 
common mail server.

And of course it doesn't even try to stop the MAIL FROM forgery.

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