如何在 Outlook 2013 中查看电子邮件的来源？
我想查看确切的电子邮件来源，就像在 Gmail 或 Mozilla Thunderbird 中一样。我对最重要的事情（标题？）特别感兴趣。这是一个示例，由 Gmail 提供。
Delivered-To:
Received: by 10.50.110.41 with SMTP id hx9csp12093igb;
Wed, 19 Sep 2012 01:36:43 -0700 (PDT)
Received: by 10.229.137.133 with SMTP id w5mr1607897qct.21.1348043802480;
Wed, 19 Sep 2012 01:36:42 -0700 (PDT)
Return-Path: <noreply@github.com>
Received: from smtp1-ext.rs.github.com (smtp1-ext.rs.github.com. [207.97.227.250])
by mx.google.com with ESMTP id 5si930058qcy.70.2012.09.19.01.36.42;
Wed, 19 Sep 2012 01:36:42 -0700 (PDT)
Received-SPF: pass (google.com: domain of noreply@github.com designates 207.97.227.250 as permitted sender) client-ip=207.97.227.250;
Authentication-Results: mx.google.com; spf=pass (google.com: domain of noreply@github.com …