From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-3.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_NONE shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id AEC2A1F4C0 for ; Thu, 10 Oct 2019 23:01:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726828AbfJJXBe (ORCPT ); Thu, 10 Oct 2019 19:01:34 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:41364 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726321AbfJJXBe (ORCPT ); Thu, 10 Oct 2019 19:01:34 -0400 Received: from pps.filterd (m0187473.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x9AMvDEt049266 for ; Thu, 10 Oct 2019 19:01:33 -0400 Received: from e06smtp01.uk.ibm.com (e06smtp01.uk.ibm.com [195.75.94.97]) by mx0a-001b2d01.pphosted.com with ESMTP id 2vjbndkdm8-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 10 Oct 2019 19:01:33 -0400 Received: from localhost by e06smtp01.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 11 Oct 2019 00:01:27 +0100 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x9AN1Q9T31129734 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 10 Oct 2019 23:01:26 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A05AF11C058; Thu, 10 Oct 2019 23:01:26 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4E27911C04A; Thu, 10 Oct 2019 23:01:26 +0000 (GMT) Received: from ozlabs.au.ibm.com (unknown [9.192.253.14]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 10 Oct 2019 23:01:26 +0000 (GMT) Received: from [10.61.2.125] (haven.au.ibm.com [9.192.254.114]) (using TLSv1.2 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by ozlabs.au.ibm.com (Postfix) with ESMTPSA id A4231A01C1; Fri, 11 Oct 2019 10:01:22 +1100 (AEDT) Subject: Re: [PATCH] parser: Unmangle From: headers that have been mangled for DMARC purposes To: Jeff King , Jonathan Nieder Cc: patchwork@lists.ozlabs.org, Stephen Rothwell , Alexandre Belloni , Eric Blake , Christian Schoenebeck , git@vger.kernel.org References: <20191010062047.21549-1-ajd@linux.ibm.com> <20191010194132.GA191800@google.com> <20191010225405.GA19475@sigill.intra.peff.net> From: Andrew Donnellan Date: Fri, 11 Oct 2019 10:01:23 +1100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20191010225405.GA19475@sigill.intra.peff.net> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-AU Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 19101023-4275-0000-0000-00000370FDC7 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19101023-4276-0000-0000-000038840725 Message-Id: <06541640-7eca-bc40-5c4b-9aa682d774a8@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-10-10_08:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910100199 Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org On 11/10/19 9:54 am, Jeff King wrote: > Neat. There was discussion on a similar issue recently in: > > https://public-inbox.org/git/305577c2-709a-b632-4056-6582771176ac@redhat.com/ > > where a possible solution was to get senders to use in-body From > headers even when sending their own patches. I think that's a good idea. > > This might provide an alternate solution (or vice versa). I kind of like > this one better in that it doesn't require the sender to do anything > differently (but it may be less robust, as it assumes the receiver > reliably de-mangling). Yep, it's less robust - but OTOH there's always a long tail of users stuck on old versions of git for whatever reason and having some logic to detect DMARC munging may thus still be useful. -- Andrew Donnellan OzLabs, ADL Canberra ajd@linux.ibm.com IBM Australia Limited