--- /dev/null
+From: Gregor Zattler <g.zattler@xxxxxxx-xxxxxxxxx.de>
+To: xxx request tracker <rt-xxx@xxxxxxx-xxxxxxxxxxxxxxxxx-xxxxxxxxx-xxxxxxxxx.de>
+Subject: FYI: xxxx xxxxxxx xxxxxxxxxxxx xxx
+Date: Tue, 19 Jun 2016 18:26:26 +0200
+Message-ID: <87bmc6lp3h.fsf@len.workgroup>
+MIME-Version: 1.0
+Content-Type: text/plain; charset=utf-8
+Content-Transfer-Encoding: quoted-printable
+
--- /dev/null
+Return-Path: <prvs=701fd58e1=www-data@support.xxxxxxxxxxx-xxxxxxxxx-xxxxxxxxx.de>
+Subject: [support.xxxxxxxxxxx-xxxxxxxxx-xxxxxxxxx.de #33575] AutoReply: FYI: xxxx xxxxxxx xxxxxxxxxxxx xxx
+From: " via RT" <rt-xxx@xxxxxxx-xxxxxxxxxxxxxxxxx-xxxxxxxxx-xxxxxxxxx.de>
+Reply-To: rt-xxx@xxxxxxx-xxxxxxxxxxxxxxxxx-xxxxxxxxx-xxxxxxxxx.de
+In-Reply-To: <87bmc6lp3h.fsf@len.workgroup>
+References: <RT-Ticket-33575@xxxxxxx-xxxxxxxxxxxxxxxxx-xxxxxxxxx-xxxxxxxxx.de>
+ <87bmc6lp3h.fsf@len.workgroup>
+Message-ID: <rt-4.2.8-22046-1529425595-591.33575-211-0@xxxxxxx-xxxxxxxxxxxxxxxxx-xxxxxxxxx-xxxxxxxxx.de>
+To: g.zattler@xxxxxxx-xxxxxxxxx.de
+Content-Type: text/plain; charset="utf-8"
+Date: Tue, 19 Jun 2016 18:26:36 +0200
+MIME-Version: 1.0
+Content-Transfer-Encoding: 8bit
+
+
+
+
--- /dev/null
+Return-Path: <prvs=708ebe06b=www-data@support.xxxxxxxxxxx-xxxxxxxxx-xxxxxxxxx.de>
+Subject: [support.xxxxxxxxxxx-xxxxxxxxx-xxxxxxxxx.de #33575] Resolved: FYI: xxxx xxxxxxx xxxxxxxxxxxx xxx
+From: " via RT" <rt-xxx@xxxxxxx-xxxxxxxxxxxxxxxxx-xxxxxxxxx-xxxxxxxxx.de>
+Reply-To: rt-xxx@xxxxxxx-xxxxxxxxxxxxxxxxx-xxxxxxxxx-xxxxxxxxx.de
+References: <RT-Ticket-33575@xxxxxxx-xxxxxxxxxxxxxxxxx-xxxxxxxxx-xxxxxxxxx.de>
+Message-ID: <rt-4.2.8-6644-1530017064-1465.33575-215-0@xxxxxxx-xxxxxxxxxxxxxxxxx-xxxxxxxxx-xxxxxxxxx.de>
+To: g.zattler@xxxxxxx-xxxxxxxxx.de
+Content-Type: text/plain; charset="utf-8"
+Date: Tue, 26 Jun 2016 14:44:24 +0200
+MIME-Version: 1.0
+Content-Transfer-Encoding: 8bit
+
+
+
+
+According to our records, your request has been resolved. If you have any
+further questions or concerns, please respond to this message.
+
--- /dev/null
+From: Alice <alice@example.org>
+To: Daniel <daniel@example.org>
+Subject: child message
+Message-ID: <001-child@example.org>
+In-Reply-To: <000-real-root@example.org>
+References: <000-real-root@example.org>
+Date: Fri, 17 Jun 2016 22:14:41 -0400
+
+
--- /dev/null
+From: Mallory <mallory@example.org>
+To: Daniel <daniel@example.org>
+Subject: fake root message
+Message-ID: <001-fake-message-root@example.org>
+In-Reply-to: <nonexistent-message@example.org>
+References: <000-real-root@example.org> <001-child@example.org> <nonexistent-message@example.org>
+Date: Thu, 16 Jun 2016 22:14:41 -0400
+
+This message has an in-reply-to pointing to a non-existent message
--- /dev/null
+From: Alice <alice@example.org>
+To: Daniel <daniel@example.org>
+Subject: grand-child message
+Message-ID: <001-grand-child@example.org>
+In-Reply-To: <001-child@example.org>
+References: <000-real-root@example.org> <001-child@example.org>
+Date: Fri, 17 Jun 2016 22:24:41 -0400
+
+
--- /dev/null
+From: Daniel <daniel@example.org>
+To: Alice <alice@example.org>
+Subject: grand-child message 2
+Message-ID: <001-grand-child2@example.org>
+In-Reply-To: <001-child@example.org>
+References: <000-real-root@example.org> <001-child@example.org>
+Date: Fri, 17 Jun 2016 22:34:41 -0400
+
+
--- /dev/null
+From: Alice <alice@example.org>
+To: Daniel <daniel@example.org>
+Subject: great grand-child message
+Message-ID: <001-great-grand-child@example.org>
+In-Reply-To: <001-grand-child@example.org>
+References: <000-real-root@example.org> <001-grand-child@example.org>
+Date: Fri, 17 Jun 2016 22:44:41 -0400
+
+
--- /dev/null
+From: Alice <alice@example.org>
+To: Daniel <daniel@example.org>
+Subject: root message
+Message-ID: <000-real-root@example.org>
+Date: Thu, 16 Jun 2016 22:14:41 -0400
+
+This message has no in-reply-to