To measure the success of your email body, track the following metrics:
Open Rate: The percentage of recipients who opened your email. Click-Through Rate (CTR): The percentage of recipients who clicked on a link within your email. Conversion Rate: The percentage of recipients who took a desired action after clicking a link. Bounce Rate: The percentage of emails that could not be delivered. Unsubscribe Rate: The percentage of recipients who opted out of your email list.