[ietf-dkim] Re: ISSUE 1525 -- Restriction to posting by firstAuthor breaks email semantics

[robert at barclayfamily.com]

> From: nobody at xyzzy.claranet.de
> Date: Wed, 16 Jan 2008 09:07:18 +0100
> Subject: [ietf-dkim] Re: ISSUE 1525 -- Restriction to posting by firstAuthor	breaks email semantics
> 

> If "SSP strict" is bound to the "first author" it's DOA. :-(
> 
> I fail to see why we should create an RFC only working for
> PayPal & Co. - especially while they are still too timid to
> use FAIL in their SPF or PRA policies.  SSP "first author"
> would be far more restrictive than anything SPF or PRA do.
> 
>  Frank

You seem to be asserting here that saying " I know what MTA will deliver my messages to you" and "All mail for which the author is in my administrative domain" are semantically equivalent assertions. If SSP were intended to say something about who could validly transmit those messages I could see that but since it is a policy for how I expect mail from authors within my domain to behave I don't see a useful relationship between how confident someone can be in their SPF record and how confident they can be in their SSP assertions.





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