Transactional email responds to a specific action a customer takes, such as completing a purchase, resetting a password, or booking an appointment. These messages go out immediately, one at a time, tied directly to the event that triggered them. Because customers expect this information right away, and often need it to complete what they started, transactional email is treated as time-sensitive on the Horizon Dit platform.
It gets priority sending and its own delivery resources, so a burst of marketing volume never delays an order confirmation or a security alert. This is the primary use case for email on Horizon Dit. Most businesses set up transactional email first, connecting it directly to their order management, account system, or booking platform, before adding marketing email later.