Return-Path: <test@example.com>
Delivered-To: foo@example.com
Received: from test1.example.com (test1.example.com [192.168.10.10])
    by test2.example.com (Postfix) with ESMTP id E8796FBA
    for <foo@example.com>; Sat, 26 Jul 2008 21:19:13 -0600 (MDT)
Message-ID: <98761234@test1.example.com>
Date: Sat, 26 Jul 2008 21:19:00 -0500 (CDT)
From: Test <test@example.com>
To: foo@example.com
Subject: Re: Test e-mail 1
Mime-Version: 1.0
Content-Type: text/plain
In-Reply-To: <abcd1234efgh5678@test1.example.com>
References: <abcd1234efgh5678@test1.example.com>
    <originalreply123123123@test1.example.com>

Test reply.