Postmark is a cloud-based service designed for sending and tracking transactional emails. It allows businesses to deliver important messages, such as order confirmations and password resets, directly to their users' inboxes. The platform focuses on reliability and speed, ensuring that emails are sent quickly and efficiently. In addition to sending emails, Postmark provides detailed analytics and reporting features. Users can monitor email delivery rates, open rates, and click-through rates, helping them understand how their communications are performing. This data is essential for optimizing email strategies and improving user engagement.