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How to retrieve an email header?

Written by Remy

An email header contains technical information about a message, including the route it took before reaching your inbox.

The steps to retrieve an email header vary depending on the email client you use.

Outlook Express

• Select the email you want to inspect
• Go to “File”
• Click “Properties,” then “Details”
• Open “Message Source” to view the email’s Internet headers

Microsoft Outlook 2003

• Open the email
• Go to “View,” then “Options”
• The full email header appears at the bottom of the window

Microsoft Outlook 2007

• Right-click the email
• Select “Message Options”
• The full email header appears at the bottom of the window

Microsoft Outlook 2010

• Double-click the email to open it
• Go to the “Message” tab
• Click the small arrow in the “Tags” section
• The full email header is displayed in the window

Microsoft Outlook 2013/2016

• Double-click the email to open it

• Go to “File”
• Select “Info,” then “Properties”

• The full email header appears in the “Internet headers” section

Gmail

• Open the email
• Click the three-dot “More” menu
• Select “Show original”

• The email header and technical details will be displayed
• Click “Copy to clipboard” to copy the header

Hotmail

• Open the email
• Click the three-dot menu
• Select “View message source”

• The full email header will appear in a new window

Mozilla Thunderbird

• Select the email
• Press “Ctrl+U” to open the message source

Mail on Mac

• Select the email
• Go to “View,” then “Message”
• Click “All Headers”

Microsoft Outlook 2011 for Mac

• Right-click the email
• Select “View Source”

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