IETF Logo Mail Archive

Re: [dmarc-ietf] third party authorization, not, was non-mailing list

John Levine <johnl@taugh.com> Wed, 26 August 2020 02:39 UTC

Return-Path: <johnl@iecc.com>
X-Original-To: dmarc@ietfa.amsl.com
Delivered-To: dmarc@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C86A53A0BC1 for <dmarc@ietfa.amsl.com>; Tue, 25 Aug 2020 19:39:51 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.851
X-Spam-Level:
X-Spam-Status: No, score=-1.851 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, HEADER_FROM_DIFFERENT_DOMAINS=0.249, 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=iecc.com header.b=UE+PYclp; dkim=pass (2048-bit key) header.d=taugh.com header.b=ZHVmuOCk
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 kZ8DEPaxh6y7 for <dmarc@ietfa.amsl.com>; Tue, 25 Aug 2020 19:39:50 -0700 (PDT)
Received: from gal.iecc.com (gal.iecc.com [IPv6:2001:470:1f07:1126:0:43:6f73:7461]) (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 4A3FC3A0BC2 for <dmarc@ietf.org>; Tue, 25 Aug 2020 19:39:49 -0700 (PDT)
Received: (qmail 64462 invoked from network); 26 Aug 2020 02:39:49 -0000
DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=iecc.com; h=date:message-id:from:to:cc:subject:in-reply-to:mime-version:content-type:content-transfer-encoding; s=fbcc.5f45cb74.k2008; bh=9wuKhYLFFgK714/Wx76MPSPPuXxcOmHFiQZcuSZGZr0=; b=UE+PYclpYLQMiPwE8kLTmbpMn072W+GUHgDsz6J8+yAY4xQ+t9RzsqemhSOYh2eM0igIfG6pgXBa/2ysng7YbMclpbXgHsQSSuaBSnrvVMcXDbFm+IHx7dpfOm9gMjEfAa+QDm4pZv9CLlCbxwu5YI7uNSVi1Hc6YiI3RjIM2xjfTmUhcqVDgXRg3AIhJiBenFKrsIUzqR5sGF0cQxfqggHtyGZeoXyieJS4rDkS4k1hlyor12wqZa/89/Zww0rsyNxvgmDbLyVe+Hsudl8VY2+5ui8xYw89FP8e1UpVhSGyTQyKj8H32P1dP7Z06XHCAvTzkDX74SNJFwWoNO8Xiw==
DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=taugh.com; h=date:message-id:from:to:cc:subject:in-reply-to:mime-version:content-type:content-transfer-encoding; s=fbcc.5f45cb74.k2008; bh=9wuKhYLFFgK714/Wx76MPSPPuXxcOmHFiQZcuSZGZr0=; b=ZHVmuOCk/H2W6r0AGRjMR+yT9ELLVe/ymEfpqMzxdJR1UY7h613Owbmh9Au4E89yll5iVQQ604QK2yAdUJ4MKAgjn5uZpkYy+C0Mi5SDs29pIvPO+SgQ/KZdFYzT6nWQFvTe6Bdjf0hHRjNtDQJnqrNRru3kf9Ov/ljHYmQ/Unhe6nSJvhOKtEkwrLjRsym5Rj+55nbm5jKEP3Wxi+ueUHV/DVIsyHRx0xHDdnN4zNPx8nbX3X8pXE9LIv3hIb6zngBF4vA/Yro9ln2RRRWLBJvwrFEBmPCwiLJlsCYHZGRDNaRJJEsR4kAMGxbTVy+yZl/gcWrZp1ti7SS11tg2Yw==
Received: from ary.qy ([IPv6:2001:470:1f07:1126::78:696d:6170]) by imap.iecc.com ([IPv6:2001:470:1f07:1126::78:696d:6170]) with ESMTPS (TLS1.2 ECDHE-RSA AES-256-GCM AEAD) via TCP6; 26 Aug 2020 02:39:48 -0000
Received: by ary.qy (Postfix, from userid 501) id 4215E1F294FC; Tue, 25 Aug 2020 22:39:48 -0400 (EDT)
Date: Tue, 25 Aug 2020 22:39:48 -0400
Message-Id: <20200826023948.4215E1F294FC@ary.qy>
From: John Levine <johnl@taugh.com>
To: dmarc@ietf.org
Cc: fenton@bluepopcorn.net
In-Reply-To: <b340be1f-0b0f-2bee-522c-d17b0393ac25@bluepopcorn.net>
Organization: Taughannock Networks
X-Headerized: yes
Mime-Version: 1.0
Content-type: text/plain; charset="utf-8"
Content-transfer-encoding: 8bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/dmarc/BJziJCDlAuraT_FqYTxVhFGelzA>
Subject: Re: [dmarc-ietf] third party authorization, not, was non-mailing list
X-BeenThere: dmarc@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Domain-based Message Authentication, Reporting, and Compliance \(DMARC\)" <dmarc.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dmarc>, <mailto:dmarc-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/dmarc/>
List-Post: <mailto:dmarc@ietf.org>
List-Help: <mailto:dmarc-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dmarc>, <mailto:dmarc-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 26 Aug 2020 02:39:52 -0000

In article <b340be1f-0b0f-2bee-522c-d17b0393ac25@bluepopcorn.net> you write:
>> If the list is somelist@lists.foo.org, does the signature have to be
>> d=lists.foo.org?  How about d=foo.org?
>>
>This seems like an analogous situation to the DKIM i= flag, where the
>domain MUST be the same as, or a subdomain of, the value of the d= flag.
>So I'd recommend allowing d=foo.org.

Well, OK, how about d=org?  This is the opposite of i=, superdomains rather than subdomains.

R's,
John

PS: I realize .org isn't likely to be signing anything, there are 25 TLDs with
top level MX or A records that plausibly could.

v2.23.0 | Report a Bug | By Email