The U.S. postmaster general is the chief executive of the U.S. Postal Service. The postmaster general's duties include oversight of consumer complaints and investigations of mail fraud in its many forms. It is not difficult to contact and file a complaint with the postmaster general, provided you know the proper contact information and the most efficient means of contact.
Call 1-800-275-8777 toll-free to reach the Washington D.C. headquarters of the U.S. postmaster general. The telephone system will prompt you to enter the type of inquiry or complaint you wish to file.
Explain the problem. The office of the U.S. Postal Inspection Service investigates five broad categories of complaints: mail service issues, emergencies, mail fraud, mail theft and identity theft. The Postal Inspection Service provides customer support for general questions.
Use "snail mail." Write a letter to the postmaster general to file a formal complaint, especially complaints pertaining to law-enforcement issues such as fraud. The address is:
U.S. Postal Service
475 L'Enfant Plaza, SW
Washington, DC 20260-0010
The proper salutation to begin the letter is "Dear Mr. Postmaster General."
Explain the issue and provide copies of any documentation relating to the complaint, as well as your full name, address and telephone number.
Sign the letter and send by certified mail if you desire proof of receipt.
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