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In this article I’ll give you a brief introduction to Outlook Internet Headers. Being an Exchange Admin it’s essential you know what an Internet Header is and just as important know how to read it, especially in troubleshooting situations and when dealing with spoofed e-mail messages
Every single Internet e-mail message is made up of two parts--the header and the message body. Knowing how to check an Internet header can for example come in handy, if you’re tracing who the original sender of a spoofed e-mail message is, or just to see if a given e-mail message actually is spoofed.
Every single e-mail you received from other organizations on the Internet contains an Internet Header. A valid Internet e-mail header provides a detailed log of the network path taken by the message between the mail sender and the mail receiver(s), this Internet mail header can sometimes be quite long depending on the network path between sender and receiver.
Your email client program will usually hide the full header or display only lines, such as From, To, Date, and Subject, see Figure 1 for an example of the default shown headers when opening an e-mail message in Outlook 2007.
Method #1: Right-click the message in the folder view, then choose Options.
Method #2: In an open message, choose View | Options.
With either method, you'll see the Internet headers portion of the Message Options dialog.
Figure 2: Internet Header in Outlook 2007
In the bottom of figure 2 you can see the Internet headers, but as the header is too big for us to be able to see it in the Internet header box, I’ve copy/pasted it below:
Microsoft Mail Internet Headers Version 2.0
Received: from delivery2.pens.phx.gbl ([207.46.248.41]) by winhosting.dk with Microsoft
SMTPSVC(6.0.3790.0);
Wed, 31 Mar 2004 22:44:45 +0200
Received: from TK2MSFTDDSQ03 ([10.40.1.67]) by delivery2.pens.phx.gbl with Microsoft SMTPSVC(6.0.3790.0);
Wed, 31 Mar 2004 12:46:34 -0800
Reply-To: "Bill Gates" 10_132_KNZiMBwjgiRqfK8bWmPT0w@newsletters.microsoft.com
From: "Bill Gates" billgates@chairman.microsoft.com
To: <henrik@exchange-faq.dk>
Subject: Microsoft Progress Report: Security
Date: Wed, 31 Mar 2004 12:46:33 -0800
Message-ID: e95f401c41761$40ce6070$4301280a@phx.gbl
X-Mailer: Microsoft Office Outlook, Build 11.0.5510When reading a header in Outlook 2007, you have to start from the bottom and up, most of the lines are pretty logical, but in order for you to get a thorough understanding of what happens when an e-mail is sent from one e-mail client to another, we recommend you read the following article, which does a great job
explaining all you ever want to know about Internet Mail headers: Reading E-mail Headers - www.stopspam.org/email/headers.html
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