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Suspicious Mail

Dangerous mail includes mail bombs, hoax devices, suspicious substances, or any matter that may cause harm. The likelihood of anyone receiving a harmful biological or chemical agent is extremely remote. Postal Inspectors within the Dangerous Mail Investigations Program are specially trained to recognize the common characteristics of suspicious mail and use an array of specialized screening equipment to identify and mitigate threats to postal infrastructure, its employees, and the general public.

Protect Yourself

Follow and share these tips to protect yourself and others against suspicious mail.

  • Look closely

    Suspicious mail often has no return address, excessive tape and postage, and/or misspelled or badly written words. Learn how to identify a suspicious package.
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  • Be careful

    If you suspect you have received a suspicious package, isolate the item, maintain a safe distance from the item, wash your hands, and immediately call Postal Inspectors at 1-877-876-2455 and state “emergency.” If medical attention is warranted, contact local authorities immediately.

  • Check with your Post Office

    If you’re not sure about mailing an item, check with your local Post Office™.

Specially trained inspectors are equipped to address potential threats.


Report a Crime

Are you a victim or have you witnessed a mail-related crime? Alert Postal Inspectors to the problem and prevent others from being victimized.

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