This paper presents an efficient approach to integrate Internet of Things (IoT) technology into traditional postboxes and delivery lockers to secure them. By equipping conventional postboxes with IoT capabilities, receivers are provided with real-time notifications upon the delivery of mail or deliveries. The belongings will remain safe as it requires secure access procedures fortified by the electronic locks and identification verification. Monitoring temperature ensures the safety of perishable commodities, while anti-tampering sensors strengthen the protection provided by the system. Integration with delivery schedules and routes simplifies operations while improving the efficiency of postal employees' commutes. Providing a channel for feedback from recipients helps increase engagement. The paper investigates the possible advantages, disadvantages, and effects of integrating IoT technology into postal infrastructure, aiming to reinvent how the postal ecosystem interacts with and provides services to its customers. © 2025 Elsevier B.V., All rights reserved.