Re: [dmarc-ietf] I-D Action: draft-ietf-dmarc-aggregate-reporting-08.txt

Scott Kitterman <sklist@kitterman.com> Wed, 29 March 2023 01:25 UTC

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Date: Wed, 29 Mar 2023 01:24:50 +0000
From: Scott Kitterman <sklist@kitterman.com>
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Subject: Re: [dmarc-ietf] I-D Action: draft-ietf-dmarc-aggregate-reporting-08.txt
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On March 29, 2023 1:00:29 AM UTC, "Murray S. Kucherawy" <superuser@gmail.com> wrote:
>On Wed, Mar 29, 2023 at 5:30 AM Trent Adams <tadams=
>40proofpoint.com@dmarc.ietf.org> wrote:
>
>>  Regardless of the outcome of that analysis, though, it does seem
>> reasonable to ask the reporter to include a tag indicating the method they
>> employed to discover the policy.  They will know which method they use,
>> it's reasonable to request they include it, and it'll significantly improve
>> the utility of the reports.  Further... while trouble-shooting
>> authentication problems, it's useful to compare reports from multiple
>> sources, and when doing so it'll be necessary to distinguish between
>> discovery methods.
>>
>>
>>
>> In short, I am strongly in favor of including a tag within the RUA that
>> indicates which discovery mechanism was employed.  For all the reasons
>> previously discussed, it may not be wise to key off of a version, but we
>> could use some indicator of discovery.
>>
>
>I'm still noodling on this, but my current view is that this seems like a
>reasonable thing to allow for in the specification and it might be
>something we even want to encourage, though we ought not make it
>mandatory.  If it turns out that implementation X doing a tree walk has a
>vulnerability, or that the tree walk itself is vulnerable somehow, I might
>not want to announce that I'm subject to attack.
>
>-MSK, participating

As long as it's optional, I can live with it.

Scott K