What is the primary duty of the Postal Service?

The primary duty of the Postal Service is to ensure the security of mail in its custody. This responsibility encompasses safeguarding both the physical and electronic mail to protect it from loss, theft, or damage. Maintaining the integrity and confidentiality of mail is essential to building trust with customers and ensuring that they feel confident sending sensitive information or important items through the postal system.

While delivering packages internationally and providing financial services are part of the Postal Service's broader operations, they are not the core responsibility. Similarly, managing postal facilities is important for effective operations, but again, it does not capture the central purpose of the Postal Service. The focus remains on the security of the mail, making it the most critical duty in fulfilling its mission to serve the public effectively and efficiently.