The identification lines at the beginning of an email message, such as To:, From:, Subject: and Date:. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

The junk filters available for Mail may not always identify spam, and while you can create your own junk mail rules, sometimes messages uses custom header information. Here is how to use those headers ...

I pretty frequently get requests for help from someone who has been impersonated—or whose child has been impersonated—via email. Even when you know how to “view headers” or “view source” in your email ...