How to view Outlook Email Headers (internet headers)

Full Mail Headers is the complete set of Email headers added by the sender’s email software and related Email Servers during the email delivery process. It contains helpful information on the email message delivery and routing, including IP addresses involved, time sent, and email sources.

View message headers in Outlook

To see message headers in Outlook 2010 and higher, this is what you need to do:

1. Open the email with the headers you need to see.
2. Select the Files tab in the email’s window.
3. Click on the Properties button.
4. You’ll get the “Properties” dialog box. In the “Internet Headers” field you’ll see all information about the message.
5.