Open Rate: The percentage of recipients who open the email. Click-Through Rate (CTR): The percentage of recipients who click on a link within the email. Conversion Rate: The percentage of recipients who complete a desired action, such as making a purchase. Average Order Value (AOV): The average amount spent per order, which can indicate the success of cross-selling and upselling efforts. Customer Lifetime Value (CLV): The total revenue generated from a customer over their lifetime, which can help assess the long-term impact of personalized email campaigns.