To view email headers of an email message, please refer to the appropriate version of your email client:
Outlook 2011 for Mac
- Open Outlook.
- Ctrl+Click (or right-click with a two-button mouse) on the message from the message list.
- Select View Source.
Full headers will appear in a new TextEdit document.
Outlook 2010 (Windows)
- Open Outlook.
- Open the email message in a new window.
- Click on the File tab from the menu bar and choose Properties.
Full headers will appear in the box within the properties window.
Outlook 2007 (Windows)
- Open Outlook.
- Right-click on the message from the list of messages.
- Select Message Options.
Full headers are displayed in the Internet Headers area.
Mac Mail
- Open Mac Mail.
- Click on the message you'd like to view headers for.
- Go to the View menu.
- Select Message, then Long Headers.
The full headers will appear in the window below your inbox.
Entourage for Mac
- Open Entourage.
- Click on the message you'd like to view headers for.
- Click on the Message menu and select Internet Headers.
Mozilla Thunderbird
- Open Thunderbird.
- Click on the message you'd like to view headers for.
- Click the View menu, and select Message Source.
The full headers will appear in a new window.
Gmail
- Log in to Gmail.
- Open the message you'd like to view headers for.
- Click the down arrow next to Reply, at the top of the message pane.
- Select Show Original.
The full headers will appear in a new window.
AOL
- Log in to your AOL account.
- Open the message you'd like to view headers for.
- In the Action menu, select View Message Source.
The full headers will appear in a new window.
Hotmail
- Log in to your Hotmail account.
- Select Inbox from the left-side menu.
- Right-click (or Ctrl-click) the message you'd like to view headers for, and select View Message Source.
The full headers will appear in a new window.
Yahoo! Mail
- Log in to your Yahoo! Mail account.
- Select the message you'd like to view headers for.
- Click the Actions dropdown and select View Full Headers.
The full headers will appear in a new window.