Re: [Mailsec] Subscription check
Alessandro Vesely <vesely@tana.it> Tue, 14 November 2023 09:24 UTC
Return-Path: <vesely@tana.it>
X-Original-To: mailsec@ietfa.amsl.com
Delivered-To: mailsec@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 669D5C14CF18 for <mailsec@ietfa.amsl.com>; Tue, 14 Nov 2023 01:24:01 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.107
X-Spam-Level:
X-Spam-Status: No, score=-2.107 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, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_BLOCKED=0.001, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=neutral reason="invalid (unsupported algorithm ed25519-sha256)" header.d=tana.it header.b="Vbh716BW"; dkim=pass (1152-bit key) header.d=tana.it header.b="DN6pHL0D"
Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gz48SJZTHta1 for <mailsec@ietfa.amsl.com>; Tue, 14 Nov 2023 01:23:53 -0800 (PST)
Received: from wmail.tana.it (wmail.tana.it [94.198.96.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 34EAAC151080 for <mailsec@ietf.org>; Tue, 14 Nov 2023 01:23:49 -0800 (PST)
DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=tana.it; s=epsilon; t=1699953827; bh=VWXSD+vGywBgKDYZJ2Jsl79cXJhDy2mHrBgab50KcRk=; h=Author:Date:Subject:To:References:From:In-Reply-To; b=Vbh716BWzHNQ0cbOIScmHMwerKEU4lTvqk5J61PdZwiH4nqOfh5MG8rHKFeDO3Hl9 iZjkYa5dPWk/yXewTvFDw==
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tana.it; s=delta; t=1699953827; bh=VWXSD+vGywBgKDYZJ2Jsl79cXJhDy2mHrBgab50KcRk=; h=Date:Subject:To:References:From:In-Reply-To; b=DN6pHL0DLApPU4hHp6hHrBAAge+XIZgMIOqY2Q2I0ux8TfgoRovTSqai0E3JIPtQj gapq3RP0z0QJC4JzLd6GdSIaD4KbnEWtJqm2CRh5AlNPVVxEJM5KiPm53O5a4c7Mxd rG/DzkJXtxijv9vbuvNh4JzveYKBZUDlfrlonaMpkXFsoMatEhSRZc/vt4IlR
Original-Subject: Re: [Mailsec] Subscription check
Author: Alessandro Vesely <vesely@tana.it>
Received: from [172.25.197.120] (pcale.tana [172.25.197.120]) (AUTH: CRAM-MD5 uXDGrn@SYT0/k, TLS: TLS1.3, 128bits, ECDHE_RSA_AES_128_GCM_SHA256) by wmail.tana.it with ESMTPSA id 00000000005DC0BC.0000000065533CA2.00001830; Tue, 14 Nov 2023 10:23:46 +0100
Message-ID: <9c5067b1-9f75-4be0-be65-8512133e987c@tana.it>
Date: Tue, 14 Nov 2023 10:23:46 +0100
MIME-Version: 1.0
User-Agent: Mozilla Thunderbird
Content-Language: en-US, it-IT
To: "Murray S. Kucherawy" <superuser@gmail.com>, mailsec@ietf.org
References: <91eee28f-6794-453e-8176-74ea6bd2a858@tana.it> <2e4f6e24-0985-af2f-1209-e5943384f7f7@aitchison.me.uk> <16fcfb86-6d11-4919-b9b0-7c22560ad1ab@tana.it> <CAL0qLwaMO0Z3nLXKFMdid=ves3cqL9gOU1+9yyT8oe6GApuq-A@mail.gmail.com>
Authentication-Results: tana.it; auth=pass (details omitted)
From: Alessandro Vesely <vesely@tana.it>
In-Reply-To: <CAL0qLwaMO0Z3nLXKFMdid=ves3cqL9gOU1+9yyT8oe6GApuq-A@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"; format="flowed"
Content-Transfer-Encoding: 8bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/mailsec/LKTJE193P0PEcO5xdV9LKHa1OTA>
Subject: Re: [Mailsec] Subscription check
X-BeenThere: mailsec@ietf.org
X-Mailman-Version: 2.1.39
Precedence: list
List-Id: Email Security Issues <mailsec.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/mailsec>, <mailto:mailsec-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/mailsec/>
List-Post: <mailto:mailsec@ietf.org>
List-Help: <mailto:mailsec-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/mailsec>, <mailto:mailsec-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 14 Nov 2023 09:24:01 -0000
Hi Murray, On Tue 14/Nov/2023 00:29:15 +0100 Murray S. Kucherawy wrote: > On Mon, Nov 13, 2023 at 5:30 AM Alessandro Vesely <vesely@tana.it> wrote: > >> How about the other point? Except for my goofy re-subscription attempt, >> list subscriptions can only be checked by waiting for monthly reminders, >> which I call a time distributed database. > > Pretty sure this is the wrong list to resolve such a discussion. If you say so it must be true. I thought that maintaining a real database of subscriptions would help to tell legit forwarding from, say, spear phishing attempts that use a false From:, especially if it's done in cooperation with the mailbox provider. You know what I mean. Admittedly, the argument is a bit contrived, with respect to the list purpose. Best Ale --
- [Mailsec] Subscription check Alessandro Vesely
- Re: [Mailsec] Subscription check Andrew C Aitchison
- Re: [Mailsec] Subscription check Alessandro Vesely
- Re: [Mailsec] Subscription check Michael Peddemors
- Re: [Mailsec] Subscription check Murray S. Kucherawy
- Re: [Mailsec] Subscription check Alessandro Vesely