Which service is typically considered a core function of postal operations?

Mail delivery is indeed recognized as a core function of postal operations. This service encompasses the collection, sorting, and distribution of letters and packages to various recipients. It is fundamental to the purpose and identity of postal services. Without the ability to deliver mail, the postal system would not fulfill its primary role, which is to facilitate communication and commerce through the reliable transport of physical mail.

While other functions like financial services, record keeping, and human resources management are important for the overall operation of postal agencies, they are not at the heart of what defines postal services. Mail delivery is essential for connectivity within communities and across long distances, making it the fundamental service that postal operations provide.