How many categories of mail are specified in postal services?

The correct answer identifies five distinct categories of mail as specified by postal services. These categories typically include letters, flats (large envelopes), parcels, express mail, and international mail. Each category serves different needs and characteristics, allowing postal services to organize and manage deliveries effectively based on size, weight, speed, and destination.

Understanding these categories is essential for anyone working in sales or services related to postal operations, as it helps in distinguishing the types of mail, the applicable rates, and services that customers may require. The classification aids customers in selecting the best service based on their mail’s destination and urgency, enhancing customer satisfaction and improving operational efficiency. This comprehensive approach ensures that all types of mail are handled appropriately within the postal system.