So, the solution I found was that instead of the single line of code shown in the question, I need to 'Insert as Text' a file containing: I presume that what is happening is that when Outlook detects a valid HTML file being 'Inserted as Text', it strips the opening and closing, and tags and then inserts the code that was between them - as HTML, not as text.

The reason this is not obvious is because if you insert multiple code segments, each one has to be a complete HTML file, which is something you would never do when actually writing HTML. The answer is that each segment of HTML code inserted has to be a complete HTML file, including the, and tags, not just the desired HTML code. In a way, it's obvious, but in another way, it's not. I have no affiliation with that website.) (As indicated by the alt attribute, the image file in that example is just a random online image that appears in one of the articles referenced above. So, for example, if I make a file containing the line: Īnd then use 'Insert as Text' to insert that line in my e-mail, the result is just that line of code, not the image. However, when I tried this, Outlook did not interpret my HTML. Fortunately though, there are also sources that show how to get it back. But as of Office 2016, the 'Insert as Text' option is no longer available by default.

Several sources say that the way to do this is to use 'Insert as Text' to insert a file containing the HTML code. One important reason for using HTML is to keep the size of an e-mail down when inserting an image by using an tag to access the image from online instead of inserting the image itself in the body of the e-mail. Although Outlook sends e-mails as HTML by default, Microsoft seems to want to make it hard for us to write that HTML ourselves.

Send html email in outlook