In this article you will learn how to send email using ASP.NET. Yes, there are plenty of other articles that cover sending email via .NET, but after spending a day doing research, I was amazed at how many articles failed to provide either a correct solution or a real world example. I found that many articles suggest you create your HTML email by using a string with the HTML markup in it. That’s crazy and not at all a real world solution, at least not for most situations. In this article we will look at a more realistic solution. One in which we use a regular HTML file as our template for the email. The template file will be a standard HTML file with the exception of some placeholders that we will use to populate our content and images right before we send the email. Think mail-merge in Microsoft Word. Finally, we will also learn how to send the email in such a way that if the email recipient’s mail-client can’t render HTML they will get an alternate plain text version.
Let’s start by looking at the code in its entirety; the people that just want to grab the code and use it can do so. I will then explain the code.