Re: [Bimi] MUA Evaluation of BIMI

Stephen Farrell <stephen.farrell@cs.tcd.ie> Tue, 15 March 2022 19:50 UTC

Return-Path: <stephen.farrell@cs.tcd.ie>
X-Original-To: bimi@ietfa.amsl.com
Delivered-To: bimi@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 6E09A3A172D for <bimi@ietfa.amsl.com>; Tue, 15 Mar 2022 12:50:58 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.01
X-Spam-Level:
X-Spam-Status: No, score=-2.01 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_BLOCKED=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=cs.tcd.ie
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 b7_9iFFzOFBT for <bimi@ietfa.amsl.com>; Tue, 15 Mar 2022 12:50:53 -0700 (PDT)
Received: from EUR02-HE1-obe.outbound.protection.outlook.com (mail-he1eur02on0731.outbound.protection.outlook.com [IPv6:2a01:111:f400:fe05::731]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id C52313A11D5 for <bimi@ietf.org>; Tue, 15 Mar 2022 12:50:51 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=BPJFjCDgDG4GyEFm8ojaSp2UUmodmUz7AtQQKHru1TNJU5aOszxdmmU+Ly9+egrNCWVmcaX7+13H4jWbBKy7a3yUnpu1zggpi40R5fOL6+mNWHsBS1+DXcBPGEW7O0xy4Shkk+qzmSzDridv/V6h+WX/ADoqEXo6kSpjD7yCgBNjVX25ZKPptuuNHfWtbFOFNPzkPklhoGN9KVM+egdrUUrkvHyw/iqvF2xU9xKMSDSLBk76Ua/V1Y8lgZXk3kVIwK9n5iHMuDENOH4lgjs1KzGbSx14jTHv9eXhknev7XPmTCw9zsn4/L5TrafCmukSVF8ur2SEGnI/IAXaGYHH7w==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=QplYyxdDCqPu8iKPg8I+jo1F/KCjP0O1a+xVGg9VD5A=; b=mi5gpdt/UsLtgTgtDUz38lnFVHuhyLQ6zsi2zIDYUQjYUKpszQrXwBT9ZK5by/flqT9oNkCF8gUt21RliQQ6GcsGdDt6MHcstJRmzlWSA54FcWOkY0GDj54w4mTbXclgrAsnAuLhGkKc0Hc1bTFOoP5JtBlVejD/hn4YVDKdEY6LzXdm2Xo15PWbIqWu2QkYtHVfTTYl3X2EkCEY6rUaBJOOKPJThj/aRRp57RDXhJvPAC20zDPrZUvLI76TvQlk5cEF+6s7aXBaBUmTnDwttCPt7tp1zTT0vsPVUyFyMSTISLKEn/5eKGTKoVJ671a8t0dkYO2q8hJ8kMnhpO19CQ==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=cs.tcd.ie; dmarc=pass action=none header.from=cs.tcd.ie; dkim=pass header.d=cs.tcd.ie; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cs.tcd.ie; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=QplYyxdDCqPu8iKPg8I+jo1F/KCjP0O1a+xVGg9VD5A=; b=lzctdijO48TP4czBzVdI6rdPmxm5fJdl3QyPQKb4Bgnhasdw59riyh9KI58jlaR8PIi/x9KPivgC3DN8NF8LfBAnkAaLX7NTQX1AbXJ+q0y0dhy5JabP5g/sEyexm2rGoGeRSjPR7FwxpbNtWEz/cA/kwojKVLMLjBAe7aSniu3w7f9ikNtl+GfMAq60HYIf0VxPzCDWaFAOh56pN/so+ZhQu3GSQ/WH4I6ImzxIQXNmzJ/QzbT8DL3fELpQ9VqIPIUy9BNj7cicj7yN1YFbfqBic4dKDmq+rd7+bc5vzbw3tl5a7QYLhpsU/niq7Y6U83lJYUNsDIpudWiMspRU7A==
Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=cs.tcd.ie;
Received: from DB7PR02MB5113.eurprd02.prod.outlook.com (2603:10a6:10:77::15) by VI1PR02MB4206.eurprd02.prod.outlook.com (2603:10a6:803:7b::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5061.29; Tue, 15 Mar 2022 19:50:46 +0000
Received: from DB7PR02MB5113.eurprd02.prod.outlook.com ([fe80::d814:ffb7:9500:d217]) by DB7PR02MB5113.eurprd02.prod.outlook.com ([fe80::d814:ffb7:9500:d217%4]) with mapi id 15.20.5061.029; Tue, 15 Mar 2022 19:50:46 +0000
Message-ID: <1b843c81-c991-ebb2-0e34-e390c72558a1@cs.tcd.ie>
Date: Tue, 15 Mar 2022 19:50:44 +0000
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0
Content-Language: en-US
To: Jakub Olexa <jakub=40mailkit.com@dmarc.ietf.org>, bimi@ietf.org
References: <7639D8E5-B8CA-48E6-B6F3-63BA091C3AC5@contoso.com> <VI1PR01MB7053B6AF625A5FFB2222F795C70F9@VI1PR01MB7053.eurprd01.prod.exchangelabs.com> <MN2PR11MB4351276056888F77815E220EF70F9@MN2PR11MB4351.namprd11.prod.outlook.com> <CB922168-3B56-488E-90DD-2591B064F9FF@proofpoint.com> <0aba2ca2-d499-0f88-c490-cc83eb493760@mailkit.com>
From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
In-Reply-To: <0aba2ca2-d499-0f88-c490-cc83eb493760@mailkit.com>
Content-Type: multipart/signed; micalg="pgp-sha256"; protocol="application/pgp-signature"; boundary="------------fmylBqAHyc1BdHeV7DUQOinl"
X-ClientProxiedBy: DB6PR07CA0089.eurprd07.prod.outlook.com (2603:10a6:6:2b::27) To DB7PR02MB5113.eurprd02.prod.outlook.com (2603:10a6:10:77::15)
MIME-Version: 1.0
X-MS-Exchange-MessageSentRepresentingType: 1
X-MS-PublicTrafficType: Email
X-MS-Office365-Filtering-Correlation-Id: d30f15c7-6849-4f65-6c3a-08da06bd18ce
X-MS-TrafficTypeDiagnostic: VI1PR02MB4206:EE_
X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True
X-Microsoft-Antispam-PRVS: <VI1PR02MB420602113628E415689E99EFA8109@VI1PR02MB4206.eurprd02.prod.outlook.com>
X-TCD-Routed-via-EOP: Routed via EOP
X-TCD-ROUTED: Passed-Transport-Routing-Rules
X-MS-Exchange-SenderADCheck: 1
X-MS-Exchange-AntiSpam-Relay: 0
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info: 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
X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:DB7PR02MB5113.eurprd02.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230001)(4636009)(366004)(44832011)(508600001)(786003)(8676002)(2906002)(316002)(2616005)(45080400002)(186003)(26005)(6486002)(6512007)(235185007)(66946007)(86362001)(66556008)(66476007)(8936002)(31696002)(53546011)(36756003)(21480400003)(564344004)(38100700002)(33964004)(6506007)(31686004)(83380400001)(5660300002)(45980500001)(43740500002); DIR:OUT; SFP:1102;
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: 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
X-OriginatorOrg: cs.tcd.ie
X-MS-Exchange-CrossTenant-Network-Message-Id: d30f15c7-6849-4f65-6c3a-08da06bd18ce
X-MS-Exchange-CrossTenant-AuthSource: DB7PR02MB5113.eurprd02.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Mar 2022 19:50:46.2207 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: d595be8d-b306-45f4-8064-9e5b82fbe52b
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: ICdInnYcCoKbJEkzL+omdHOTP9PxBf4dG5bE0rdXC9wgrnmcrJRzqxl9hTwNZwNw
X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR02MB4206
Archived-At: <https://mailarchive.ietf.org/arch/msg/bimi/fltSzBsr31LT-n6NL6jvH25Gd_4>
Subject: Re: [Bimi] MUA Evaluation of BIMI
X-BeenThere: bimi@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Brand Indicators for Message Identification <bimi.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/bimi>, <mailto:bimi-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/bimi/>
List-Post: <mailto:bimi@ietf.org>
List-Help: <mailto:bimi-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/bimi>, <mailto:bimi-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 15 Mar 2022 19:50:59 -0000

Hiya,

On 15/03/2022 18:45, Jakub Olexa wrote:
> my concern with this approach is that it would essentially prevent MUAs 
> from implementing BIMI support.

Interesting. My concern with Trent's #1 was that it might
encourage MUAs to try!

I think it'd be better to explicitly discourage that.

S.