IETF Logo Mail Archive

Re: [Uta] TLSRPT mx-host-pattern

Daniel Margolis <dmargolis@google.com> Tue, 17 July 2018 13:32 UTC

Return-Path: <dmargolis@google.com>
X-Original-To: uta@ietfa.amsl.com
Delivered-To: uta@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1C850130E58 for <uta@ietfa.amsl.com>; Tue, 17 Jul 2018 06:32:46 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -17.51
X-Spam-Level:
X-Spam-Status: No, score=-17.51 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, ENV_AND_HDR_SPF_MATCH=-0.5, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, T_DKIMWL_WL_MED=-0.01, USER_IN_DEF_DKIM_WL=-7.5, USER_IN_DEF_SPF_WL=-7.5] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=google.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 eEqSBsUXSm23 for <uta@ietfa.amsl.com>; Tue, 17 Jul 2018 06:32:44 -0700 (PDT)
Received: from mail-io0-x230.google.com (mail-io0-x230.google.com [IPv6:2607:f8b0:4001:c06::230]) (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 7CE79130F13 for <uta@ietf.org>; Tue, 17 Jul 2018 06:32:31 -0700 (PDT)
Received: by mail-io0-x230.google.com with SMTP id q4-v6so979785iob.2 for <uta@ietf.org>; Tue, 17 Jul 2018 06:32:31 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=OpTCBeMiO7JgKfWofPRlEj+3DxCVLNu4qwuHNXshfYg=; b=eedSaqlhsE1rsbK9IjZxa+7h0OhvtVdW7bVYrvcG6rQ92uzxs9/thRGIYe5XsgakWP 2XLIVCayA8HkiTwvb3jHP2CgpnmyRNX7EKZaKDL5h2qY/ynDo2MBoL1WY2DPQIl/mpNT OnKmWli6wwggqDUnc8W0nSeCngq2wY4UD9A655RlUiy4t8YnCvKsdYw44I5kWR392ReG LkW3LhWMbmgum0FEH4TNnMIjxlj1N2DKAmO6PMBYZYljot9U8MSVoFdXisAJbVfXcGrG +f9nf8W5ZWzHpl+Pg0X0VBVw1gfQToykJoOt8lyyvedk9iJuyeiD+NoFmfr/RbSsW6cM cATw==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=OpTCBeMiO7JgKfWofPRlEj+3DxCVLNu4qwuHNXshfYg=; b=cROHWO61FrIiPalCRNyBBz0mQcMxzddJD5Gl+2Y81xkPTOwF8nVT7ucOJ0DuSzt72E bvVorgf/yrVJPxFq+Fuob86sdBFoL8DVVi7MHRxzyLGpGntPLw9PQSlJrhG1hXncObJZ XubNT0NSHlTWQbD4yS3ht3RVtR9mCfjToMnKipNBf/x8o6tKKjpmxdHsvDRBXw7THkG3 JbdPQmkJ1BoBJK2n1xehw5SpNMCnt0vCWN1WKfpYZImexsJmBFFzZTFIEu/L3BzYTtcg MpCye8X5oHfo2blVi1DvhglGrf7uLFBrtEC3BA+tqW4/Nn055yIPIGOYP6OG4So0fQ2v AS7w==
X-Gm-Message-State: AOUpUlF2g0W61LgnSr/fZcqLabdeCZJLIrh4hxs6HpZKOZh8TyE6kQCY 290NpIiFISYBF9aB/rBecBCuHOFt21uEQjfny9XOUxBX
X-Google-Smtp-Source: AA+uWPz9TIzzzG/6e+QZcCQEPtan7uCk7QEdpS3OSXGdIQZnzaHfcp+rQlQgeyBMDFv0+7KDw25hzwBQpphB4tzCnbo=
X-Received: by 2002:a6b:bf04:: with SMTP id p4-v6mr1406109iof.15.1531834350463; Tue, 17 Jul 2018 06:32:30 -0700 (PDT)
MIME-Version: 1.0
References: <9e6cd065c0dd45f1aa760582656edec5@COPDCEX19.cable.comcast.com>
In-Reply-To: <9e6cd065c0dd45f1aa760582656edec5@COPDCEX19.cable.comcast.com>
From: Daniel Margolis <dmargolis@google.com>
Date: Tue, 17 Jul 2018 15:32:18 +0200
Message-ID: <CANtKdUfqaaS0wswN5ZOb4_TpTJws2cShYccHiVujWpnu7m+FQw@mail.gmail.com>
To: "Brotman, Alexander" <Alexander_Brotman@comcast.com>
Cc: uta@ietf.org
Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg="sha-256"; boundary="0000000000005934e1057131faf4"
Archived-At: <https://mailarchive.ietf.org/arch/msg/uta/5iaEdUvPs2xQ6hcXWEKk6AWxGZU>
Subject: Re: [Uta] TLSRPT mx-host-pattern
X-BeenThere: uta@ietf.org
X-Mailman-Version: 2.1.27
Precedence: list
List-Id: UTA working group mailing list <uta.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/uta>, <mailto:uta-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/uta/>
List-Post: <mailto:uta@ietf.org>
List-Help: <mailto:uta-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/uta>, <mailto:uta-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 17 Jul 2018 13:32:46 -0000

+1 for a JSON array.

On Mon, Jul 16, 2018 at 11:43 PM Brotman, Alexander <
Alexander_Brotman@comcast.com> wrote:

> Hello,
>
> While someone was beginning to write their code for TLSRPT, they noticed
> that mx-host-pattern is under specified.
>
>    o  "mx-host-pattern": The pattern of MX hostnames from the applied
>       policy.  It is provided as a string, and is interpreted in the
>       same manner as the "Checking of Wildcard Certificates" rules in
>       Section 6.4.3 of [RFC6125].  In the case of Internationalized
>       Domain Names ([RFC5891]), the domain MUST consist of the Punycode-
>       encoded A-labels ([RFC3492]) and not the U-labels.
>
> https://tools.ietf.org/html/draft-ietf-uta-smtp-tlsrpt-23#section-4.4
>
> So, the questions arises when for instance one is using MTA-STS and has
> two MX allowed patterns and how that should be noted in the report field.
> I'd like to suggest we use a JSON array, as the report is already in JSON.
> An alternate would be a simple string.  I wanted to see if the WG had any
> objections to this change.
>
> Thanks for your time.
>
> --
> Alex Brotman
> Sr. Engineer, Anti-Abuse
> Comcast
>
>
> _______________________________________________
> Uta mailing list
> Uta@ietf.org
> https://www.ietf.org/mailman/listinfo/uta
>

v2.23.0 | Report a Bug | By Email