Check out a free preview of the full Responsive HTML Email Design course:
The "5 Rules" Lesson is part of the full, Responsive HTML Email Design course featured in this preview video. Here's what you'd learn in this lesson:
A 2007 blog post highlighted 5 rules to sending effective emails. Justine shares the rules and talks about how they are still relevant today. She also shows these rules in action with a couple email examples that contain both plain-text and HTML versions.