How can this be, since when you compose a new email you can’t set any text properties (like Bold, Italic, color and so on) for the subject line? This also applies for messages written in the “Plain text” format, so the red emails aren’t related to the content properties for sure. Well, its subject is colored red, the actual body of the message is formatted normally, exactly like how it was sent. If you use Microsoft Outlook to read your emails, every once in a while you may receive a red email message. *Since we received many emails from our users asking about incoming Outlook emails displayed in red, we decided to post this step-by-step tutorial for generating red emails.*