Re: [ietf-smtp] Is this a valid Message-ID header ?

Valdis Kl ē tnieks <valdis.kletnieks@vt.edu> Fri, 06 March 2020 03:27 UTC

Sender: Valdis Kletnieks <valdis@vt.edu>
From: Valdis Kl=?utf-8?Q?=c4=93?=tnieks <valdis.kletnieks@vt.edu>
To: John Levine <johnl@taugh.com>
Cc: ietf-smtp@ietf.org
In-Reply-To: <20200305043414.0E7C515740C2@ary.qy>
References: <20200305043414.0E7C515740C2@ary.qy>
Mime-Version: 1.0
Content-Type: multipart/signed; boundary="==_Exmh_1583465260_11464P"; micalg="pgp-sha1"; protocol="application/pgp-signature"
Content-Transfer-Encoding: 7bit
Date: Thu, 05 Mar 2020 22:27:40 -0500
Message-ID: <87055.1583465260@turing-police>
Archived-At: <https://mailarchive.ietf.org/arch/msg/ietf-smtp/XGkPOuzWPxlBhrNENiBHwOlSlD4>
Subject: Re: [ietf-smtp] Is this a valid Message-ID header ?
Precedence: list

On 04 Mar 2020 23:34:13 -0500, "John Levine" said:
> I read IETF mailing lists on the IETF's IMAP server* and of late I've been
> seeing some awfully funky stuff.
>
> This is an actual Message-ID header in one of the messages in dnsop.
> Is that valid?  Even though the MIME decodes to a an ASCII message ID
> in the <string@domain> format, I think the answer is no.  That's not
> what RFC 5322 sec 3.6 allows.

I'll see your Message-ID, and raise you a... not even sure *what* to call it. :)

>From my collection of emails that give exmh indigestion:

% grep UTF-8 183
From: =?UTF-8?B?dGlwLWJvdCBmb3IgRGF2aWQgQnJvd24gPHRpcGJvdEB6eXRvci5jb20+?=@zytor.com
To: =?UTF-8?B?bGludXgtdGlwLWNvbW1pdHNAdmdlci5rZXJuZWwub3Jn?=@zytor.com
Subject: =?UTF-8?B?W3RpcDptbS9yZWFkb25seV0gQVJNL3Zkc286IE1hcmsgdGhlIHZEU08gY29kZSA=?=  =?UTF-8?B?cmVhZC1vbmx5IGFmdGVyIGluaXQ=?=
Git-Commit-ID: =?UTF-8?B?MTFiZjliODY1ODk4OTYxY2VlNjBhNDFjNDgzYzlmMjdlYzc2ZTEyZQ==?=
X-Mailer: =?UTF-8?B?dGlwLWdpdC1sb2ctZGFlbW9u?=
Robot-ID: =?UTF-8?B?PHRpcC1ib3QuZ2l0Lmtlcm5lbC5vcmc+?=
Robot-Unsubscribe: =?UTF-8?B?Q29udGFjdCA8bWFpbHRvOmhwYUBrZXJuZWwub3JnPiB0byBnZXQgYmxhY2tsaXM=?=  =?UTF-8?B?dGVkIGZyb20gdGhlc2UgZW1haWxz?=
MIME-Version: =?UTF-8?B?MS4w?=
Content-Transfer-Encoding: =?UTF-8?B?OGJpdA==?=
Content-Type: =?UTF-8?B?dGV4dC9wbGFpbjsgY2hhcnNldD1VVEYtOA==?=
Content-Disposition: =?UTF-8?B?aW5saW5l?=

Amazingly enough, this managed to collect 10 Received: headers, land in my
mailbox, and exmh *mostly* figured it out:

From: tip-bot for David Brown <tipbot@zytor.com>@zytor.com
To: linux-tip-commits@vger.kernel.org@zytor.com
Subject: [tip:mm/readonly] ARM/vdso: Mark the vDSO code   read-only after init
Git-commit-id: 11bf9b865898961cee60a41c483c9f27ec76e12e
X-mailer: tip-git-log-daemon
Robot-id: <tip-bot.git.kernel.org>
Robot-unsubscribe: Contact <mailto:hpa@kernel.org> to get blacklis  ted from these emails
Mime-version: 1.0
Content-transfer-encoding: 8bit
Content-type: text/plain; charset=UTF-8
Content-disposition: inline

But then finally gave up because it tried to use the undecoded content-type,
gave up, and tossed up a "save/print/don't decode MIME" dialog.

And yes, tip-bot got fixed quite quickly thereafter... :)

[ietf-smtp] Is this a valid Message-ID header ? John Levine
Re: [ietf-smtp] Is this a valid Message-ID header… Paul Smith
Re: [ietf-smtp] Is this a valid Message-ID header… Valdis Kl ē tnieks
Re: [ietf-smtp] Is this a valid Message-ID header… Mark Andrews
Re: [ietf-smtp] Is this a valid Message-ID header… John R Levine
Re: [ietf-smtp] Is this a valid Message-ID header… Valdis Kl ē tnieks
Re: [ietf-smtp] Is this a valid Message-ID header… John C Klensin
Re: [ietf-smtp] Is this a valid Message-ID header… John R Levine
Re: [ietf-smtp] Is this a valid Message-ID header… Ned Freed
Re: [ietf-smtp] Is this a valid Message-ID header… John C Klensin
Re: [ietf-smtp] Is this a valid Message-ID header… Keith Moore
Re: [ietf-smtp] Is this a valid Message-ID header… Keith Moore