Re: [dmarc-ietf] ARC questions

John R Levine <johnl@taugh.com> Thu, 03 December 2020 02:33 UTC

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Date: 2 Dec 2020 21:33:52 -0500
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From: "John R Levine" <johnl@taugh.com>
To: "Michael Thomas" <mike@mtcc.com>
Cc: "IETF DMARC WG" <dmarc@ietf.org>
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Subject: Re: [dmarc-ietf] ARC questions
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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
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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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Date: Wed, 2 Dec 2020 15:30:01 -0800
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