Mail bearing a fictitious name or address

§ 4003. Mail bearing a fictitious name or address (a) Upon evidence satisfactory to the Postmaster General that any person is using a fictitious, false or assumed name, title or address in conducting, promoting or carrying on or assisting therein, by means of the postal service of the United States, an activity in violation of sections 1302, 1341, and 1342 of title 18, the Postmaster General may— (1) withhold mail so addressed from delivery; and (2) require the party claiming the mail to furnish proof to him of the claimant’s identity and right to receive the mail. (b) The Postmaster General may issue an order directing that mail, covered by subsection (a), be forwarded to a dead letter office as fictitious matter, or be returned to the senders when the— (1) party claiming the mail fails to furnish proof of his identity and right to receive the mail; or (2) the Postmaster General is satisfied that the mail is addressed to a fictitious, false or assumed name, title or address.