Open Rates: Indicates how many subscribers opened your email. Click-Through Rates (CTR): Shows the percentage of subscribers who clicked on links within the email. Conversion Rates: Measures how many subscribers took a desired action, such as signing up for a webinar or making a purchase. Unsubscribe Rates: Tracks the number of subscribers who opted out of your email list. Engagement Rates: Monitors how actively subscribers interact with your content over time.