In previous versions of Microsoft Outlook (the classic app), you could view the HTML code of an email by opening the email, right-clicking on it, and selecting “View source” from the context menu.

If you use Microsoft Office Outlook 2010 to manage all emails in your small business, consider creating an HTML email signature.

How to Display Email in HTML in Outlook 2007. Microsoft Outlook 2007 supports both plain text messages and HTML emails that contain links, formatting and graphics.