Re: SPF and HELO, was Re: SPF PASS

Terry Fielder <[email protected]> Thu, 26 May 2005 14:03:45 -0400
Newsgroups gmane.ietf.mxcomp
Message-ID <[email protected]>


John Levine wrote:
>>>I wish there was a way to utilize the relatively large number of SPF records
>>>in a technology like CSV.
> 
> 
> Yeah.  Too bad that among SPF's many flaws is that it completely
> confuses the HELO domain and the MAIL FROM domain 
No it does not.  It checks each independently.  See my previous post to 
your question.

> (and on a bad day,
> the domains in From:, Sender:, Resent-From:, and Resent-Sender:.)

SPF never does that, please do not confuse PRA with SPF.

> 
> 
>>It seemed to me at one point that there was some promise that it
>>would be possible to write an SPF record which applied only to HELO
>>or only to PRA or only to the return path.
> 
> 
> SPF 2.0 was supposed to let you specify which contexts each record is
> supposed to apply to, but I agree that it'll never get any traction.

SPF 2.0 won't, because its tied to PRA.  That does not preclude SPF 3.0 
using the syntax of proposed SPF2.0, which would superscede SPF1 and 
really be the second generation of SPF1 (because SPF2.0 was *not* second 
generation of SPF, it was hijacking to a completely different usage and 
meaning (PRA))

> 
> 

-- 
Terry Fielder
[email protected]
Associate Director Software Development and Deployment
Great Gulf Homes / Ashton Woods Homes
Fax: (416) 441-9085