USPS Postal Support Employee (PSE) Practice Exam - Prep, Practice Test & Study Guide

The primary service used for forwarding mail temporarily is indeed the Premium Forwarding Service. This service is specifically designed for customers who need their mail sent to a different address for a set period, such as when they are traveling or living temporarily at another location.

Premium Forwarding Service allows for the collection of mail at the original address and then sends it all at once to the designated temporary address, which can be particularly useful for maintaining consistent communication without missing important mail. This service is tailored for temporary relocations, which differentiates it from other mailing services that may not focus on temporary forwarding.

In contrast, Standard Delivery refers to the regular delivery of mail without the specific options for forwarding. Global Express Guaranteed is primarily for international shipping with guaranteed delivery times, while First-Class Package Service is used for sending packages quickly but does not facilitate temporary forwarding of mail. Thus, Premium Forwarding Service stands out as the most appropriate solution for the temporary forwarding of mail.