View RAW message source of an email in Outlook 2013

How can I view the source of an email in Outlook 2013?

I want to see the exact email source, as I can do in Gmail or in Mozilla Thunderbird. I'm particularly interested in the top matter (headers?). Here's an example, courtesy Gmail.

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: <>
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 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 designates 207.97.227.250 as permitted sender) smtp.mail=
Date: Wed, 19 Sep 2012 01:36:41 -0700
From: Louis <>
Reply-To: rg3/youtube-dl <>
To: rg3/youtube-dl <>
Message-Id: <rg3/youtube-dl/issues/355/>
In-Reply-To: <rg3/youtube-dl/issues/>
References: <rg3/youtube-dl/issues/>
Subject: Re: [youtube-dl] Youtube Download Slows Down after 10 seconds (#355)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary=mimepart_50598419db896_3241ecda741010
Precedence: list
List-Archive:
List-Id: rg3/youtube-dl <youtube-dl.rg3.github.com>
List-Post: <mailto:>
X-Github-Reason: comment
List-Unsubscribe: <mailto:>
--mimepart_50598419db896_3241ecda741010
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: Quoted-printable
Content-Disposition: inline

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4 Answers

Headers

1. Open the particular email in a new window by double-clicking on the message in the message list. (This is important, it's not enough to be just looking at the message in what Outlook calls the 'reading pane'.)
2. Follow the menu File | Info | Properties
3. Look for a text area labelled Internet headers
4. Here are the headers. Select and copy the text to a text editor.

Content

1. Open message in a new window
2. On the Message ribbon, select Action | Other Actions | View Source.

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1. Open message in new window
2. On the Message tab select Actions dropdown (next to Move button)
3. Select Other Actions → Source

4

Is File - Info - Properties not working to display the headers?

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This answer is from here: email.about.com

Make the complete message source available in Outlook

To set up Outlook so you can see the complete source of emails:

Press Windows-R
Type "regedit".
Hit Enter.
For Outlook 2013: Go to HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Options\Mail
Select Edit | New | DWord from the menu.
Type "SaveAllMIMENotJustHeaders".
Hit Enter.
Double-click the newly created SaveAllMIMENotJustHeaders value.
Type "1".
Click OK.
Close the registry editor.
Restart Outlook if it has been running.

See the complete source of a message in Outlook

Now you can retrieve the source of newly retrieved POP messages (editing the SaveAllMIMENotJustHeaders value does not restore the complete message source for emails that were already in Outlook):

Click on the desired message with the right mouse button in the Outlook mailbox.
Select Options... from the menu.
Find the message source under the (now improperly named) Internet headers: section.

7

The add-on Message Header Analyzer for Outlook 2013 and Outlook Online provides a well-formatted overview.

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