How to view full message headers in Office 365

This FAQ was last modified on: Thursday, May 31, 2018 12:29pm
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View Message Headers - Applies to Outlook for Office 365, Outlook 2016, Outlook 2013

An email message internet header provides a list of technical details about the message, such as who sent it, the software used to compose it, and the email servers that it passed through on its way to the recipient. Most of the time, only an administrator will need to view internet headers for a message.

Outlook Web Access (OWA)
  1. If you’re using Outlook Web Access, you can double-click on the email to open it and click on the down-arrow next to "Reply" and select “View Message details“.

Or

  2. You can right-click on the email message and click on "View Message Details".

OWA - View Message header

  3. Example of "Message Details (Headers). *Admins may require you to copy the entire contents and submit them for troubleshooting purposes.

OWA - Message Headers

Outlook 2016

Option 1.

  1. Double-click the email message to display it in its own full window.
  2. Select “File” > “Properties“.
  3. The Properties window is displayed. View the message header in the “Internet headers” field at the bottom of the window

Outlook 2016 Properties

 


Option 2

  1. Double-click the email message to display it in its own full window.
  2. Select the tiny arrow in the “Tags” section.

   3. The Properties window is displayed. View the message header in the “Internet headers” field at the bottom of the window.