Re: [dmarc-ietf] ARC questions

Michael Thomas <mike@mtcc.com> Thu, 03 December 2020 02:47 UTC

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To: John R Levine <johnl@taugh.com>
Cc: IETF DMARC WG <dmarc@ietf.org>
References: <20201124020453.AFDC027CE5C8@ary.qy> <cd855b53-d9bd-3412-3bd5-dc4b7720dc5c@mtcc.com> <CABa8R6s0bfs87Fu9eOq_R3WH1pngauVXrw3RSPe9iWWCtf3AmQ@mail.gmail.com> <c954eadd-5c85-c0d9-2168-8a42de506b72@mtcc.com> <CABa8R6swzAQLPU=xE2tr1W0J5r+w80BSYu87_ubMwHaUMgmKvA@mail.gmail.com> <1eed8278-4efa-4abc-15e0-2efcf014e82e@mtcc.com> <CABa8R6sEk+dHwHjBCKDgcmeT_Z3FymC5+jzy-GGa=7gJYvOf5A@mail.gmail.com> <446d491b-100a-9813-6463-2294f67bbda7@mtcc.com> <aafa5e78-aff9-8076-b76f-62f5b3a13fc1@taugh.com> <4190de2d-9f17-06d5-6354-30c989eecd4a@mtcc.com> <17d886fd-49fd-28d8-f8e4-7caf2e85919c@taugh.com> <f785884b-2a3d-a6fe-6bb6-ee792d23ff23@mtcc.com> <d5e9dbe-7d83-d3b1-2aa9-3e3562d3e75@taugh.com> <8bc3c7ad-2a42-3eed-524c-8c50b16131c2@mtcc.com> <42178950-1ac3-27b4-a981-155fd9117969@taugh.com>
From: Michael Thomas <mike@mtcc.com>
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Subject: Re: [dmarc-ietf] ARC questions
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PS: you're adding X-Google-DKIM-Signature which nobody knows what its 
utility is to your bloat total for dramatic effect.

Mike

On 12/2/20 6:33 PM, John R Levine wrote:
> On Wed, 2 Dec 2020, Michael Thomas wrote:
>>> But why bother?  The IANA header field registry currently has 419 
>>> entries. Why is it a crisis if it increases to 422 rather than 420?
>>
>> It does a lot more than that:
>
> We've been through this all before and none of these are persuasive.  For
> example:
>
>> 3) It adds a lot more bloat to the headers
>
> The message you just sent arrived with 4600 bytes of header (see 
> below) and under 2K of text.  Copies that went through the dmarc 
> mailing list probably had at least another 1K of header.
>
> If header bloat were ever an issue, it hasn't been for decades.
>
> R's,
> John
> ---- snip ---
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> Subject: Re: [dmarc-ietf] ARC questions
> To: John R Levine <johnl@taugh.com>om>, Brandon Long <blong@google.com>
> Cc: IETF DMARC WG <dmarc@ietf.org>
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> From: Michael Thomas <mike@mtcc.com>
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