Before you can start designing, coding, and sending your HTML emails, you need to know how it all works and what tools you’ll need. A well-designed email is more readable, sure, but it’s also more effective at relaying information. If you’re new to email marketing, this section includes some basic-but-essential principles and background information of HTML emails.

What makes HTML email so difficult for most people is delivery, not designing and coding. When creating an email, you can’t just attach your HTML file and images to an email and send it. When people open the HTML file, your images will be broken. Even if you manage to properly display your HTML, some recipients will experience issues. Instead, you need to send your HTML email using Multipart-Alternative MIME format.

In this section we cover MIME, ways you can avoid spam filters, and other HTML email specifics to help ensure the delivery of your campaigns.