Postal System

A postal system is a network established for the collection, processing, transmission, and delivery of mail. It encompasses various services related to sending letters, packages, and other forms of correspondence. Postal systems operate through a combination of physical infrastructure, such as post offices, sorting facilities, and transportation methods, as well as regulations and operational procedures that govern the handling and delivery of mail.

The main functions of a postal system include the acceptance of mail items, sorting them based on their destination, transporting them via land, air, or sea to the appropriate locations, and eventually delivering them to recipients. Postal systems often provide various services such as express mail, registered mail, and international shipping, as well as additional features like tracking and insurance for valuable items.

Historically, postal systems have played a critical role in communication and commerce, facilitating the exchange of information and goods across distances. They are typically operated by government entities or private companies, with some countries also having established regulations to ensure universal service.