Improved Delivery Speed: By hosting resources separately, the email size is reduced, leading to faster delivery and loading times. Enhanced Security: Resources can be hosted on secure servers, reducing the risk of phishing and other malicious activities. Better Tracking: Marketers can track how recipients interact with the resources, providing valuable insights for future campaigns. Consistency: Ensures that all recipients see the email as intended, regardless of their email client or device. Flexibility: Resources can be updated without needing to resend the email, allowing for dynamic content and real-time updates.