When reviewing your email marketing campaigns, it's important to focus on key metrics that provide insights into your campaign's performance. These metrics include: - 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 a desired action, such as making a purchase. - Bounce Rate: The percentage of emails that could not be delivered. - Unsubscribe Rate: The percentage of recipients who opt out of your email list.