The email header contains metadata about the email message such as information about the place, time, and way the message is sent and transmitted between the mail servers.
Usually, the full email source is needed for investigating email-related issues as it includes the complete content of the email, including both the header and the body of the message.
If you need to share an email source, we recommend pasting it into a text file (e.g. .txt, .pdf) to make sure it is not corrupted while being processed by text redactors.
Double-click on the message to open it in the new window.
From the Files tab select Info > Properties. Full email headers are located inside the Headers box:
