Re: [DNSOP] Consensus suggestion for EDE and the TC bit

Vittorio Bertola <vittorio.bertola@open-xchange.com> Tue, 03 December 2019 10:41 UTC

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Date: Tue, 3 Dec 2019 11:41:43 +0100 (CET)
From: Vittorio Bertola <vittorio.bertola@open-xchange.com>
Reply-To: Vittorio Bertola <vittorio.bertola@open-xchange.com>
To: Puneet Sood <puneets=40google.com@dmarc.ietf.org>
Cc: dnsop <dnsop@ietf.org>
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Subject: Re: [DNSOP] Consensus suggestion for EDE and the TC bit
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> Il 3 dicembre 2019 05:12 Puneet Sood <puneets=40google.com@dmarc.ietf.org>; ha scritto:
> 
> I would support text like the above in section 3.4 to remind operators
> not to put very long text in the EXTRA-TEXT field.

Thinking at how that field could be used in practice for a use case that we have in mind, I think it would be structured and contain pointer(s?) to more detailed information, under the form of URL(s). As long as it can keep a couple of average-length URLs and some shorter things, I think it will be ok. Also, independently from whether I like this or not, I expect this type of advanced use cases to require DoH as a transport protocol - I don't see clients trusting this information if received from an unauthenticated resolver over a cleartext connection.

-- 
 
Vittorio Bertola | Head of Policy & Innovation, Open-Xchange
vittorio.bertola@open-xchange.com 
Office @ Via Treviso 12, 10144 Torino, Italy