Open Rates: Indicates how many recipients opened your email, hinting at the effectiveness of your subject line and initial visual appeal. Click-Through Rates (CTR): Measures how many recipients clicked on the media or links within your email. Conversion Rates: Tracks the number of recipients who completed a desired action, such as making a purchase or filling out a form. Engagement Time: Analyzes how much time recipients spend interacting with your email content. Feedback and Surveys: Direct feedback from recipients can provide insights into how engaging they found your email content.