Webhook endpoints can experience failures due to various issues such as rate limiting, network errors, server errors, or invalid SSL certificates, necessitating a robust delivery system that can notify endpoint owners of these problems. Convoy, a webhook management tool, addresses these challenges by sending automated email notifications detailing the nature of failures, thus improving the user experience and optimizing resource use by avoiding interactions with inactive endpoints. Convoy allows endpoint owners to receive notifications, re-activate their endpoints through a user-friendly portal, and replay missed events that were not sent during downtime, ensuring a seamless recovery process and maintaining efficient communication.