Measuring the performance of your email campaigns involves tracking various key metrics such as open rates, click-through rates (CTR), bounce rates, and conversion rates. Open rates indicate the percentage of recipients who opened your email, while CTR measures the percentage of recipients who clicked on links within your email. Bounce rates refer to the percentage of emails that were not successfully delivered, and conversion rates measure the percentage of recipients who completed a desired action, such as making a purchase or filling out a form. Using these metrics, you can analyze the effectiveness of your campaigns and make data-driven decisions to optimize future emails.