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.

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. If your small business uses the ...

I can create instructions where someone can take the finalized HTML code, and then using Thunderbird insert as HTML into an email, and then send that out to our contacts.

While the process is tedious, encrypting your email address in the HTML code frustrates some of the less sophisticated harvesting programs while giving your human visitors easy access to your inbox.