On Oct 15, 2010, at 10:58 AM, Barry Leiba wrote:

> On Fri, Oct 15, 2010 at 1:27 PM, Hector Santos <hsan...@isdg.net> wrote:
>> Murray S. Kucherawy wrote:
>> 
>>>> I appreciate the desire to put more information in there to help, but
>>>> we really can't be writing a tutorial on managing DNS records.
>>> 
>>> +1.  However, I'd be fine with adding some informative guidance to DKIM
>>> implementers reflecting current experience, something like: "The use of
>>> wildcard TXT records in the DNS often result in something coming back
>>> from a query that isn't a valid DKIM key record (and ADSP will encounter
>>> the same thing).  Verifiers should expect this to occur and plan 
>>> accordingly."
>> 
>> Thank you Murray.  Something small and sweet will be useful, and your
>> text is good enough.
> 
> Good; we have a start.  Will others please indicate support (or not)
> for adding this or similar text ?

I'm not sure whether wildcard records is relevant to the spec - that's
more of a "development, deployment and operations" issue, I think.

As a verifier implementor I'm not that interested in why someone is
publishing bogus key records as I am in what I should do about them
(fail if any are invalid, fail if there are multiple, check all of them and
pass if any are valid...) - what's an appropriate response from the
verifier in the case that the TXT records returned are unexpected.

So the existing wording is harmless, and I'd support adding it,
but something a little bit more prescriptive might be better.

Cheers,
  Steve


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