A/B testing in email marketing compares two variations of an email (A and B) with one differing element to determine which performs better in open rates, click-through rates, and conversions. By testing different subject lines, content, visuals, or calls to action, you can make data-driven decisions, optimize campaigns, and achieve more effective and successful email marketing strategies.
If you're curious to learn more about email marketing, I suggest checking out this free video tutorial. It covers everything from the basics to advanced topics, providing a comprehensive understanding of the subject.