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Contact Us

You can contact the U.S. Postal Inspection Service in three ways:

  1. Mail correspondence to this address:

    CRIMINAL INVESTIGATIONS SERVICE CENTER
    ATTN: MAIL FRAUD
    433 W HARRISON STREET ROOM 3255
    CHICAGO IL 60609-3255

  2. Call your nearest Postal Inspection Service division.

  3. Submit a Mail Fraud Report if you have a complaint involving fraud and the U.S. Mail. All information you submit will be transmitted via a secure server. Read our Privacy Policy for more information.

Or, you may also find your answer on our FAQs page.