How do I display and send the full headers of an email message?

To mail the full headers of an email message you received, follow the appropriate instructions below to first display the headers. Then you can copy and paste them into the body of an email message.

On this page:

• Outlook 2010
• Outlook 2007
• OWA
• Outlook 2003
• Outlook Express, Windows Mail, Windows Live Mail (Windows)
• Entourage (Mac OS X)
• Outlook 2011 (Mac OS X)
• Thunderbird 3.x (Windows, Mac OS X)
• Mail (Mac OS X)
• IU Webmail
• Imail
• Umail

• Outlook 2010 (Windows): Double-click the message so that it opens in its own window. In the Tags group, click the dialog box launcher (small square with an arrow).
  
  
• Outlook 2007 (Windows): Double-click the message so that it opens in its own window. In the Options group, click the dialog box launcher (small square with an arrow).
  
  
• Outlook Web App (OWA): Double-click the message so that it opens in its own window. Click the "Message Details" button (the icon is an envelope with a small document over it).
  
  
• Outlook 2003 (Windows): From the View menu, select Options... . The message headers are at the bottom of the window, in a box labeled "Headers:" or "Internet headers:".
  
  
• Outlook Express, Windows Mail, or Windows Live Mail (Windows): In the message index, right-click the message, and then select Properties. Click the Details tab.
  
  
• Entourage (Mac OS X): Open the message in a separate window, and from the Message (Entourage 2008) or View (earlier versions) menu, select Internet headers.
  
  
• Outlook 2011 (Mac OS X): Right-click or control-click the message and select View Source.
  
  
• Thunderbird 3.x (Windows, Mac OS X): Click View, select Headers, then choose All.
  
  
• Mail (Mac OS X): With the message selected, from the View menu, select Message, and then select either All Headers or Long Headers.
  
  
• IU Webmail: While viewing a message, click the Message source link. This will open a new window containing the message with full headers as well as HTML tags or other code.
  
  
• Imail: Use the OWA interface. If you cannot access the OWA Premium interface from your computer, you can configure a desktop email client to access your account, and then follow the full header display instructions appropriate to your client; see Configuring an email client for Imail or Umail.
  
  
• Umail: Click the mail message to display it in the message pane. In the top right corner of the message pane, click the down arrow next to "Reply", and then click Show original.

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