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[spf-discuss] Re: Forwarder whitelisting counter-proposal: SPF "i-am=" modifier

2008-01-08 20:48:32
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Scott Kitterman wrote:
Don't both these proposals amount to "forwarders" saying "trust me I'm
a forwarder - you can just skip rejecting SPF Fail mail from me"? 

No, you got both Michael and me wrong.  Each of our proposals is merely 
trying to establish a solid identity that receivers can actually PUT on 
their forwarder whitelist.  Of course receivers still have to explicitly 
do that themselves.

With "i-am=", I can put "HELO=forwarder.org" on my whitelist, even if the 
forwarder doesn't use that identity directly in their HELOs.  Currently I 
cannot do that, but I'd rather have to list all their individual HELOs 
(which are bound to change over time).

"i-am=" is merely an out-of-band reformulation of Michael's in-band (SMTP 
extension) idea for transmitting an additional identity.

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