Re: [ietf-smtp] EHLO domain validation requirement in RFC 5321

Keith Moore <moore@network-heretics.com> Sun, 27 September 2020 16:42 UTC

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To: Russ Allbery <eagle@eyrie.org>, John R Levine <johnl@taugh.com>
Cc: ietf-smtp@ietf.org
References: <20200927052221.E0A1A21D3A2D@ary.qy> <198daf90-b3dd-de01-88a0-e9d961feddda@network-heretics.com> <9ad77523-9c98-2249-d01c-80ecc6a96fa@taugh.com> <5e0239fb-9511-c8ae-e4a4-62b9caa2c861@network-heretics.com> <46d012a7-f938-741b-95dc-23d37a26cb39@taugh.com> <87d027rxhn.fsf@hope.eyrie.org>
From: Keith Moore <moore@network-heretics.com>
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Date: Sun, 27 Sep 2020 12:42:09 -0400
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Subject: Re: [ietf-smtp] EHLO domain validation requirement in RFC 5321
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On 9/27/20 12:32 PM, Russ Allbery wrote:

> I think one can argue about whether or not it was a bad tradeoff,

Yes, that part is water under the bridge.   I'm arguing that it's still 
a heuristic based on temporary conditions that can and should change in 
the future, and therefore should not be standardized.

Keith