Correspondence produced automatically through computer programming can be defined as messages generated by a system, not composed directly by a human being. For example, an order confirmation dispatched after an online purchase falls under this category, as would a password reset notification triggered by a user request.
The significance of such automated messages lies in their ability to provide timely information, enhance operational efficiency, and maintain consistent communication. Historically, these automated communications have evolved from simple text-based alerts to sophisticated, personalized notifications, improving user experience and streamlining business processes.