IETF Logo Mail Archive

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

Dave Crocker <dcrocker@gmail.com> Mon, 28 September 2020 01:10 UTC

Return-Path: <dcrocker@gmail.com>
X-Original-To: ietf-smtp@ietfa.amsl.com
Delivered-To: ietf-smtp@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CEBDC3A0A36 for <ietf-smtp@ietfa.amsl.com>; Sun, 27 Sep 2020 18:10:07 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.311
X-Spam-Level:
X-Spam-Status: No, score=-2.311 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, NICE_REPLY_A=-0.213, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7e4JW0Y_ldLL for <ietf-smtp@ietfa.amsl.com>; Sun, 27 Sep 2020 18:10:06 -0700 (PDT)
Received: from mail-pj1-x1036.google.com (mail-pj1-x1036.google.com [IPv6:2607:f8b0:4864:20::1036]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C78D53A0AF8 for <ietf-smtp@ietf.org>; Sun, 27 Sep 2020 18:10:06 -0700 (PDT)
Received: by mail-pj1-x1036.google.com with SMTP id mm21so2635281pjb.4 for <ietf-smtp@ietf.org>; Sun, 27 Sep 2020 18:10:06 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-transfer-encoding:content-language; bh=jKzDmslZTxJzza4uwI+7VYsHvCgQUnh2RiAoBQUFLeg=; b=cZIxjd7k46X7KW2D5Zcbq1UDFarMz65EVmlsp9g8tOW9q1noShN/dCI/EKPoWXv3sP nFMGPTvaLmUYNmHZaZjegS3i8XEv1zRNlQ6Eh9La1sHS2IbVhT32WObeVzJ5XX+F7e30 q8K0iv0v+j+dheqatzvkVdfiYbbkWX4vJofObQntDLVnBFYlEardfjzvhjTEiPqkOZnY zQak81etfRYcMe5gvcyVHz9hMvZ8vH068DyZd52WZklDTm2EM4Arkz7BbpcqzkBJR7EY km6r0NUv/YALx1PL0HIDYoE4HoCnWbIL6HS+/SYGimVaeqz6+3sbqJaxjIc4k10R0h8w xnOw==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=jKzDmslZTxJzza4uwI+7VYsHvCgQUnh2RiAoBQUFLeg=; b=ruSV3kjbFyGQdrtEtqk5llnFFlDBkm17Y3GDOb3ZgN3P7AseEfZFgrJMUwlGXiJ5FI DxCQNr/jwHGOEZ9AMWHBl9j26CkyvE6HAN3rC+696/13RsAu5viqjduKFKlgmDqGimM0 FPeGDbnyiIxw1XehhEmC93F7Hh4c0Tm3qfFNlIK5PQ0qhzRH0GuTuDv+soYtID0p7y/+ G3OKNpuxeRmNv+2mIaFJOLSPw6uwSEQhPVCEu0CbNa+cA8z/F3D6bHhc9rFtNuNbEqmx f/Ug26GyHDS7JXIj4E5l3ClkGusGWCZ7rmD7Zk21XyCP91+WvzZB/HLjm1sLJnn+nhDo pZ+w==
X-Gm-Message-State: AOAM533/drZImCPtOel321O9QMiiVx4qOsQCn3ieE90nT1Ajz31p2CQU zutFyZTI07dY67bumMfw7reysDcl2XXMoA==
X-Google-Smtp-Source: ABdhPJygQNN4OV4TjpdIka3iLFpUMLfsWVVGiO5Zk5nq216dDJesUbJ+KJqD63UI0EvQitrXJOQYNg==
X-Received: by 2002:a17:90a:e815:: with SMTP id i21mr7134032pjy.97.1601255406020; Sun, 27 Sep 2020 18:10:06 -0700 (PDT)
Received: from [192.168.0.109] (c-24-130-62-181.hsd1.ca.comcast.net. [24.130.62.181]) by smtp.gmail.com with ESMTPSA id a74sm9427185pfa.16.2020.09.27.18.10.05 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 27 Sep 2020 18:10:05 -0700 (PDT)
To: Keith Moore <moore@network-heretics.com>, ietf-smtp@ietf.org
References: <402e7482-394f-e077-48b9-c9e47047c49d@dcrocker.net> <55218bbd-b001-ae3f-1afd-e4328ec7ba35@network-heretics.com> <c6b5dae5-d20a-c876-ce5a-86e1d073cf8f@dcrocker.net> <c4a66db8-e3f5-3f6f-acb0-afe01a69a27a@network-heretics.com> <cone.1601250950.437858.35945.1004@monster.email-scan.com> <ac132a1a-ec83-1ec6-dd34-85fd3bba95c5@network-heretics.com> <cone.1601252021.530626.35945.1004@monster.email-scan.com> <6330c607-5ede-4766-1823-5c8be8a9097b@network-heretics.com>
From: Dave Crocker <dcrocker@gmail.com>
Message-ID: <2efcf700-aeba-572a-2681-04d7b0422c48@gmail.com>
Date: Sun, 27 Sep 2020 18:10:04 -0700
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0
MIME-Version: 1.0
In-Reply-To: <6330c607-5ede-4766-1823-5c8be8a9097b@network-heretics.com>
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 7bit
Content-Language: en-US
Archived-At: <https://mailarchive.ietf.org/arch/msg/ietf-smtp/AJuQzlbOfrF3zSfxSerXH0g7uPg>
Subject: Re: [ietf-smtp] EHLO domain validation requirement in RFC 5321
X-BeenThere: ietf-smtp@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Discussion of issues related to Simple Mail Transfer Protocol \(SMTP\) \[RFC 821, RFC 2821, RFC 5321\]" <ietf-smtp.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ietf-smtp>, <mailto:ietf-smtp-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ietf-smtp/>
List-Post: <mailto:ietf-smtp@ietf.org>
List-Help: <mailto:ietf-smtp-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ietf-smtp>, <mailto:ietf-smtp-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 28 Sep 2020 01:10:08 -0000

On 9/27/2020 5:21 PM, Keith Moore wrote:
> Ordinary users simply don't trust email to work. 


More blanket certitude. Please document that claim.

d/

-- 
Dave Crocker
dcrocker@gmail.com
408.329.0791

Volunteer,Silicon Valley Chapter
American Red Cross
dave.crocker2@redcross.org

v2.1.27 | Report a Bug | By Email