Several metrics can help you measure viewer engagement:
Open Rate: The percentage of recipients who open your email. Click-Through Rate (CTR): The percentage of recipients who click on a link within your email. Conversion Rate: The percentage of recipients who complete the desired action (e.g., making a purchase). Bounce Rate: The percentage of emails that could not be delivered to the recipient’s inbox. Unsubscribe Rate: The percentage of recipients who opt out of your email list.