Email, Messaging, & Video Calls > Email How to Show Email Headers in Windows Mail and Outlook See hidden message details in an email's header By Heinz Tschabitscher Heinz Tschabitscher Writer University of Vienna A former freelance contributor who has reviewed hundreds of email programs and services since 1997. lifewire's editorial guidelines Updated on February 4, 2022 Email Yahoo! Mail Gmail Trending Videos Close this video player What to Know Open the message in a separate window and select File > Info > Properties.Windows Mail and Outlook display only essential header details. This article explains how to view hidden details stored within the header to track an email error or analyze and report email spam. How to Show the Mail Header in Outlook Find Microsoft Outlook header information from the message's Properties window. To find it, open the message in a separate window, go to the File tab and select Info, then select Properties. Using a Different Email Service? Most email providers and clients let you view a message's header. You can do this in Microsoft's email programs and also through Gmail, macOS Mail, Mozilla Thunderbird, and Yahoo Mail. Headers in Windows Mail In previous iterations of Windows Mail clients, like Windows Live Mail, features like header details were available, but Microsoft has positioned Windows Mail as a free, ultra-lightweight email client with only the basics. If you'd like to access more advanced header information for your emails, while there are some third-party software solutions for Windows Mail, using an email client like Outlook is easier and simpler. Was this page helpful? Thanks for letting us know! Get the Latest Tech News Delivered Every Day Subscribe Tell us why! Other Not enough details Hard to understand Submit