1. Analytics: Regularly review your email analytics to understand what content is resonating with your audience. Look at open rates, click-through rates, and conversion rates to identify successful content themes.
2. A/B Testing: Conduct A/B testing on different email elements such as subject lines, images, and CTAs to determine what works best for your audience. Use the results to refine your content strategy.
3. Surveys and Feedback: Collect feedback directly from your subscribers through surveys or feedback forms. Ask them what type of content they would like to see more of and use this information to guide your content creation.