A postage meter is a device used to print postage directly onto envelopes or packages. It allows businesses and individuals to send mail without needing to buy traditional stamps. By using a postage meter, users can weigh their mail, calculate the correct postage, and print it instantly, making the mailing process more efficient. Postage meters are often used by companies that send large volumes of mail. They can be rented or purchased from various providers. Many postage meters also offer features like tracking shipments and managing mailing costs, which can help streamline operations for businesses.