Hi All,

First off, I'm running a somewhat older version of RC, 0.9.x. Sorry!

Anyway, I have just witnessed an interesting behavior. I submitted a bug against the GNU program "idutils" on Savannah, and received the bug creation e-mail. This e-mail appeared as a thread item underneath a completely unrelated e-mail I received last week: a newsletter from a local Japanese temple.

The newsletter appears as the top item in the thread, and the newly received bug e-mail as its (only) child.

Staring at the two sets of headers, I cannot see anything that accidentally links them together ...

... except for one detail!

The bug e-mail has a References: header which is empty. And the newsletter has no Message-ID: header. If the empty References header is interpreted as referencing an empty-string Message-ID, and if the missing message-ID is interpreted as an empty string Message-ID, then ... you catch my drift! The second e-mail looks like it is referencing the first as its parent.

The two sets of headers follow. First the newsletter's headers received last week (exhibit "A"), and then the bug e-mail (exhibit "B").

Exhibit "A":

Return-path: tozenji@telus.net Envelope-to: kaz@kylheku.com Delivery-date: Fri, 27 Nov 2015 14:04:15 -0800 Received: from cmta7.telus.net ([209.171.16.80]) by kylheku.com with esmtp (Exim 4.72) (envelope-from tozenji@telus.net) id 1a2R7m-0007D3-I0 for kaz@kylheku.com; Fri, 27 Nov 2015 14:04:15 -0800 Received: from localhost ([64.180.39.205]) by cmta7.telus.net with TELUS id mm3U1r0064Ras2801m47pD; Fri, 27 Nov 2015 15:04:08 -0700 X-Authority-Analysis: v=2.1 cv=A+uRRPiG c=1 sm=2 tr=0 a=Oc6Q1KTYVYikFeLFcDQJHA==:117 a=Oc6Q1KTYVYikFeLFcDQJHA==:17 a=aatUQebYAAAA:8 a=r77TgQKjGQsHNAKrUKIA:9 a=CUJVIynGHR4dnTi5KVoA:9 a=UAVRJdkkkM0A:10 a=mepeOn7sdJp2bPwcTCwA:9 a=fMZ_E1CIlfQA:10 X-Telus-Outbound-IP: 64.180.39.205 From: =?ISO-2022-JP?B?VG96ZW5qaQ==?= tozenji@telus.net To: =?ISO-2022-JP?B?S2F6IEtZTEhFS1UgKGthekBreWxoZWt1LmNvbSk=?=kaz@kylheku.com Reply-To: tozenji@telus.net Date: Fri, 27 Nov 2015 14:04:09 -0800 Subject: =?ISO-2022-JP?B?VG96ZW5qaSBOZXdzbGV0dGVyIC0gSm9kby1lIGFuZCBLYWl6YW5raSAtIERlYyA2IA==?= MIME-Version: 1.0 Content-Type: multipart/mixed; boundary=__MIME_BOUNDARY_WSMAIL__ DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=telus.net; s=neo; t=1448661848; bh=NJopTGH1QQJkFm4xJNzsktOd/U0X4FM62+5RSk9UsWA=; h=From:To:Reply-To:Date:Subject:MIME-Version:Content-Type; b=FJUX7v/r6GasosFqOv+cCDTweNIiucl79mbDBjo02jNFPAOuQ3MDuzch582cAuKko I2fl5GbmB3FKSLctnPSp8uBXyyhpSeEJdWXvfBxCk3Do5q1HfutIxxeOe3jcBO6+gy aKFyx+uDQBqyJGPVgq/9v+DCZSBR1GoHv+MRwPjjJ605u6fEaMuZaTDwdheI9Tks7q +cZ7qlLEbRNtQj0Sz6o/3M904lwoBFtUKbIdZzn7015Qs8afv573YxkG9i5XI6LaTM TmpTIZOAvuWF77nk2rZYq+qejEuO7ZwhsKffsfZ2cR+ttz7/3zs+SftpE6rtxuv2Q1 hQq5lpX6YYvEA==

Exhibit "B":

Return-path: www-data@savannah.gnu.org Envelope-to: kaz@kylheku.com Delivery-date: Thu, 03 Dec 2015 16:57:12 -0800 Received: from savannah.gnu.org ([208.118.235.70] helo=frontend.savannah.gnu.org) by kylheku.com with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.72) (envelope-from www-data@savannah.gnu.org) id 1a4egS-0008Nl-6p for kaz@kylheku.com; Thu, 03 Dec 2015 16:57:12 -0800 Received: from www-data by frontend.savannah.gnu.org with local (Exim 4.72) (envelope-from www-data@savannah.gnu.org) id 1a4egJ-0000v5-M0 for kaz@kylheku.com; Fri, 04 Dec 2015 00:57:03 +0000 Date: Fri, 04 Dec 2015 00:57:03 +0000 To: Kaz Kylheku kaz@kylheku.com Subject: [bug #46602] mkid --prune=X complains about nonexistence of X X-PHP-Originating-Script: 0:sendmail.php From: Kaz Kylheku INVALID.NOREPLY@gnu.org X-Savane-Server: savannah.gnu.org:443 [208.118.235.70] MIME-Version: 1.0 Content-Type: text/plain;charset=UTF-8 X-Savane-Project: idutils X-Savane-Tracker: bugs X-Savane-Item-ID: 46602 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0 X-Apparently-From: 216.31.219.19 (Savane authenticated user kkylheku) Message-Id: 20151203-165702.sv71961.44257@savannah.gnu.org References: In-Reply-To: Received-SPF: none X-SPF-Guess: pass