To file a complaint regarding lost mail, what initial step should be taken?

The correct initial step to take when filing a complaint regarding lost mail is to fill out an online form or visit the local post office. This approach provides a structured and official way to document the issue, ensuring that the complaint is entered into the proper system for tracking and resolution.

By filling out the online form or visiting the local post office, customers can directly communicate their issue to the postal service, which facilitates a quicker response and resolution. This method also allows the postal service to gather important details about the lost mail, such as tracking numbers and dates, which are essential for investigating the complaint effectively.

In contrast, sending an email to the postmaster might not ensure a timely response, as it may not be the official channel for addressing lost mail complaints. Calling the president of USPS would be highly impractical and does not follow the proper protocol. Furthermore, waiting for the mail to arrive does not address the concern and could lead to increased frustration if the item is indeed lost.