Which sorting method is most commonly used for handling bulk mail?

The most commonly used method for handling bulk mail is through automated sorting systems. These systems are designed to efficiently and accurately process a large volume of mail, utilizing technology such as high-speed machines that can read addresses, sort mail by zip codes, and even distinguish between different types of mail. Automated sorting significantly reduces the time and labor costs associated with manual sorting, making it a preferred choice in postal and mailing facilities.

Automated systems can handle various mail formats and sizes, which is vital for bulk mail processing, ensuring that mail is sorted correctly and delivered promptly. The efficiency of these systems also helps to minimize human error, contributing to a more reliable mail delivery process.

While manual sorting by hand, sorting by recipient's name, and sorting by size are methods that can be used, they are not as effective for processing large volumes of mail compared to automated systems. Manual sorting is time-consuming and labor-intensive, making it impractical for bulk mail handling. Sorting by recipient’s name or size may also be part of the process, but these methods are typically used in conjunction with automated systems rather than as standalone solutions for bulk mail.