Re: [ietf-dkim] New Issue: Applicability of SSP to subdomains

[Jim Fenton <[e-mail]>]

Hector,

Hector Santos wrote:
> Jim Fenton wrote:
>
>> The question is simply, "should it be possible for an SSP record 
>> published by example.com to also apply to sub.example.com [for any 
>> value of sub]".  
>
> Yes, but allowance is made for the sub as well.  Isn't the specs 
> currently written as such?
draft-allman-dkim-ssp does attempt to address subdomains, but there are 
problems with its methodology that I presented at the WG meeting. I know 
you weren't there, but if you look at the slides at 
http://www3.ietf.org/proceedings/06nov/slides/dkim-3.pdf, especially 
slide 4, it discusses this further.

But this question is about the SSP requirements draft.  Currently the 
requirements draft is silent on this issue, and not all of the drafts 
presented at the WG meeting address propagation of SSP to subdomains, 
which is what prompts me to ask the question.  Lookup order would then 
be a secondary question if we decide that we need to address subdomains.

-Jim
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