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Is Junk Mail Legal? EDDM and Mailbox Law

The statutes, Supreme Court cases and Postal Service rules behind every flyer addressed to “Postal Customer”: what each one actually says, and what could change.

By Jake WaitzmanUpdated Sources linked throughout

Short answer: Yes. Junk mail is legal, and EDDM is an official USPS product, made permanent by a 2012 rule. A 1934 law, 18 U.S.C. 1725, keeps unstamped material out of mailboxes, and the Supreme Court upheld it in 1981. Federal law lets you stop prescreened credit offers and sexually oriented ads, but no law gives households a way to opt out of advertising mail in general.

The main laws and court rulings behind junk mail and EDDM
18 U.S.C. 17251934Only postage-paid mail may go in a mailbox. Anyone who leaves unstamped material there to avoid postage can be fined.
39 U.S.C. 30081967After a mailer sends you an ad you consider sexually provocative, you can have USPS order it to stop mailing you (PS Form 1500).
Rowan v. U.S. Post Office Dept.1970Upheld that law. A mailer’s right to communicate stops at the mailbox of an unwilling addressee.
USPS v. Council of Greenburgh Civic Assns.1981Upheld the mailbox law. A mailbox is not a public forum.
Postal Accountability and Enhancement Act2006A price cap for advertising mail, and the market-test process USPS later used to launch EDDM.
EDDM Retail final rule2012Made EDDM Retail a permanent USPS product from January 27, 2013. Advertisers may list “do not deliver” addresses; households have no opt-out.
Do Not Mail registryNever createdAt least 19 state legislatures introduced registry bills in 2007 and 2008. None passed.

Because advertising is protected speech and postage buys delivery. The First Amendment covers commercial speech, though less fully than political speech: since the Supreme Court's 1980 Central Hudson decision, a law restricting truthful advertising has to serve a substantial government interest, directly advance it, and go no further than necessary. The Postal Service delivers mail that meets its rules and carries the right postage, and no federal law requires an advertiser to get your consent before mailing you.

What federal law regulates instead is the path into your mailbox, plus a few kinds of mail you have a legal right to stop.

What does the mailbox law, 18 U.S.C. 1725, say?

It makes it a federal offense to put unstamped mail-type material in a mailbox to avoid paying postage:

“Whoever knowingly and willfully deposits any mailable matter such as statements of accounts, circulars, sale bills, or other like matter, on which no postage has been paid, in any letter box established, approved, or accepted by the Postal Service for the receipt or delivery of mail matter on any mail route with intent to avoid payment of lawful postage thereon, shall for each such offense be fined under this title.”

18 U.S.C. 1725

It became law on May 7, 1934 (48 Stat. 667) and was carried into the federal criminal code in 1948. According to a 1997 GAO review, Congress adopted it to “protect postal revenue by preventing delivery of unstamped matter to mailboxes.” It is a separate law from the Private Express Statutes, which limit who may carry letters, and the only penalty is a fine. USPS rules add that a mailbox “may be used only for matter bearing postage.”

The law does not make you accept anything. You can refuse a piece when it is offered, or mark it “Refused” and return it unopened. What it does is put the Postal Service's rules in charge of the box, and those rules send mail addressed to “Postal Customer” to all deliveries on a route and dispose of undeliverable pieces “as waste” instead of returning them.

The 1997 GAO review, done as Congress weighed postal reform, made no recommendation either way. It found that 82% of adults opposed “allowing just anyone to put mail into their mailboxes,” and that the debate had “little empirical data available to support the arguments, pro or con.”

Why did the Supreme Court uphold the mailbox law?

In U.S. Postal Service v. Council of Greenburgh Civic Associations, 453 U.S. 114 (1981), civic groups in Westchester County, New York, sued after their local postmaster told them to stop leaving unstamped notices in residents' mailboxes. The Court sided with the Postal Service. Writing for the majority, Justice William Rehnquist held that the law does not violate the First Amendment because it is not “geared in any way to the content of the message,” and that a mailbox is not a public forum open to anyone who wants to use it.

The opinion also settles whose box it is. The postal customer “pays for the physical components” but “agrees to abide by the Postal Service's regulations in exchange for the Postal Service agreeing to deliver and pick up his mail.” Nobody has to accept that bargain: anyone can do without home delivery “by simply failing to provide the receptacle.”

What did Rowan v. Post Office decide?

That a householder can shut a mailer out. Rowan v. U.S. Post Office Department, 397 U.S. 728 (1970), upheld a 1967 law, now 39 U.S.C. 3008, that lets a person who receives an ad they find “erotically arousing or sexually provocative” get a Postal Service order barring that sender from mailing them anything further. Mail-order publishers and mailing-list brokers argued it violated their free speech. Chief Justice Warren Burger's opinion for the Court rejected that:

“We therefore categorically reject the argument that a vendor has a right under the Constitution or otherwise to send unwanted material into the home of another. If this prohibition operates to impede the flow of even valid ideas, the answer is that no one has a right to press even ‘good’ ideas on an unwilling recipient.”

Rowan v. U.S. Post Office Dept., 397 U.S. 728 (1970)

The Court made the householder's judgment final. The law entrusts “unreviewable discretion to the addressee,” so a householder “may prohibit the mailing of a dry goods catalog because he objects to the contents.” Congress wrote it that way partly to keep government officials out of judging what mail says. In the Court's words, “a mailer's right to communicate must stop at the mailbox of an unreceptive addressee.”

What Rowan did not do is create a general right to refuse advertising mail. It upheld one statute, and Congress has not widened that statute since. Why Rowan doesn't stop EDDM.

Can a prohibitory order (PS Form 1500) stop junk mail?

From one sender at a time, in a narrow situation. Under 39 U.S.C. 3008 you file PS Form 1500 at a post office after receiving an ad you consider sexually provocative. USPS then directs that mailer “to make no mailings whatsoever to anyone named in the order,” starting 30 days after the mailer receives it, and after Rowan it cannot second-guess your view of the ad.

The practical limits are what keep it from working on EDDM:

  • One mailer per order. Each application names a single sender.
  • The original piece is required. You must submit “the entire advertising mailpiece (the original, NOT a photocopy),” opened.
  • It is written around named addressees. The order protects the people named in it. EDDM pieces name no one; they are addressed to “Postal Customer.”

We found no record of a prohibitory order being used against an EDDM sender. What does work on a specific EDDM sender is its own Do Not Deliver list, covered below.

What rules created EDDM?

The Postal Service built EDDM through its own rulebook, with the Postal Regulatory Commission approving it as a product. The key steps:

  • January 31, 2008. Postal Bulletin 22225 sets up the Rural Boxholder Non-delivery Request. A rural customer asks a mailer to stop, the mailer passes the request to USPS, and the carrier stops delivering that mailer's saturation pieces to the address.
  • December 16, 2010. Postal Bulletin 22300 lets mailers address saturation mail to “Postal Customer” on city routes, effective January 2, 2011, and extends the rural do-not-deliver procedure to city routes.
  • March 1, 2011. The Postal Regulatory Commission approves a market test of the retail product, first called “Marketing Mail Made Easy” (Order No. 687, Docket MT2011-3). EDDM Retail service begins March 31. By November, the PRC reports, 87% of its revenue is coming from new customers.
  • July 10, 2012. USPS asks the PRC to add EDDM Retail to its list of market-dominant products, and the PRC approves.
  • October 15, 2012. USPS publishes the final rule making EDDM Retail permanent (77 FR 62446, Federal Register document 2012-25059), effective January 27, 2013.

Nothing in the rule gives households a way to opt out. A short history of EDDM, from the 2008 rural procedure to today.

What did the 2006 postal reform law change?

The Postal Accountability and Enhancement Act (Pub. L. 109-435, December 20, 2006) rewrote how postage is priced. It classed Standard Mail, today's Marketing Mail, as a “market-dominant” product, with prices held to a cap tied to the Consumer Price Index. It also created the two procedures USPS used to launch EDDM: market tests of experimental products (39 U.S.C. 3641) and requests to add new products to the market-dominant list (39 U.S.C. 3642).

Two clarifications. PAEA did not make the Postal Service self-supporting: the Postal Reorganization Act of 1970 did, and USPS has been expected to pay its way from postage since it began operating in 1971. And the prefunding PAEA required was for retiree health benefits, not pensions. The Postal Service Reform Act of 2022 (Pub. L. 117-108) repealed that requirement and canceled the payments still owed.

Would a Do Not Mail registry be constitutional?

Precedent suggests it can be. The Congressional Research Service concluded in 2008 that “precedent on state and federal ‘do not call’ registries appears to indicate that DNM statutes could be crafted to comply with free speech principles.” Two cases point that way:

  • Rowan (1970). When the householder, not a government official, decides what to refuse, the system fits the Court's reasoning that a mailer's right to communicate stops at an unwilling recipient's mailbox.
  • Mainstream Marketing Services v. FTC (10th Cir. 2004). A federal appeals court upheld the National Do Not Call Registry against a First Amendment challenge.

Design matters, though. In 2012 the Ninth Circuit struck down a Seattle ordinance that charged phone-book publishers a fee for every book and made them honor and advertise a city opt-out registry, after holding that yellow pages directories “qualify for full protection under the First Amendment” (Dex Media West v. City of Seattle). CRS also flagged Congress's constitutional authority over post offices as a question any state registry could face.

Has anyone tried to pass a Do Not Mail law?

States have; Congress has not. In 2007 and 2008, at least 19 state legislatures introduced bills to create Do Not Mail registries, and none became law. The Congressional Research Service found no federal Do Not Mail bill introduced in that Congress, and none has passed since.

Opposition came from the industry and from the Postal Service. Direct marketers and USPS argued that advertising mail “creates jobs,” and the Postmaster General testified in March 2008 that the bills “threaten the viability of the mail.” USPS estimated that registries in every state could cost it $4 billion to $10 billion a year in revenue if half to all consumers signed up; CRS noted that the estimate did not subtract the costs USPS would save by delivering less. The mailing industry organized its opposition through a coalition called Mail Moves America.

Even a bill that passed might have missed EDDM. New Hampshire's 2008 bill exempted “saturation mailings that go to every resident along the postal route,” according to the state committee report CRS quotes. Is there a Do Not Mail registry today? What the voluntary lists cover.

How does mail compare with phone, email and fax?

Telemarketing, commercial email, robocalls and fax ads each come with a legal opt-out or a consent rule. Advertising mail has legal opt-outs for just two narrow categories.

Legal opt-out rights by marketing channel
Channel and lawWhat you can do
Telemarketing callsFTC Telemarketing Sales Rule; registry opened 2003Register once with the National Do Not Call Registry. It is free and never expires.
Commercial emailCAN-SPAM Act (2003)Every message must explain how to opt out, and the sender must honor the request within 10 business days.
Robocalls and autodialed calls or texts to cell phonesTelephone Consumer Protection Act (1991)The caller needs your prior express consent.
Fax adsTCPA, as amended by the Junk Fax Prevention Act (2005)Unsolicited fax ads require an established business relationship and must carry an opt-out notice.
Prescreened credit and insurance offers by mailFair Credit Reporting Act, 15 U.S.C. 1681b(e)Opt out for five years or permanently through OptOutPrescreen.com.
Sexually oriented ads by mail39 U.S.C. 3008A prohibitory order against each sender (PS Form 1500).
All other advertising mail, EDDM includedNoneNo legal opt-out. Voluntary industry lists cover some addressed mail, not EDDM.

What could change?

A household opt-out could come from the Postal Service, from Congress or from the states, with public pressure behind any of them. As of October 2026 we know of no USPS rulemaking, Postal Regulatory Commission proceeding or federal bill that would create one.

  • A USPS rule. The Postal Service created both existing do-not-deliver procedures itself, through Postal Bulletin notices in 2008 and 2010, without new legislation. A household version could come the same way, as a change to USPS's mailing standards, or through the Postal Regulatory Commission, which approved EDDM Retail as a product in 2012.
  • Congress. Congress oversees USPS and does take up mail subsidies. S. 3260, the Ending Subsidies for Political Junk Mail Act, introduced November 20, 2025, would end the reduced postage rate for political committees; it was referred to the Senate Homeland Security and Governmental Affairs Committee.
  • The states. New York's S.9440, introduced March 12, 2026, would create a statewide “Do Not Disturb” registry covering telemarketing, email, texts, faxes and physical mail, for businesses above set volume thresholds (for mail, more than 5,000 pieces in one of the previous five years). It was referred to the Senate Consumer Protection Committee. A state registry would face the constitutional questions above.
  • Public pressure. Jake Waitzman started the Change.org petition in January 2020 to ask the Postal Service for an EDDM opt-out. The legislative toolkit has a model bill for lawmakers who want to act.

Junk mail law: quick answers

Is it illegal to put flyers in someone’s mailbox?

Yes, if no postage is paid. 18 U.S.C. 1725 makes it a federal offense, punishable by a fine, to leave unstamped circulars or similar material in a mailbox to avoid postage. The Supreme Court upheld the law in 1981.

Who controls what goes in my mailbox?

The Postal Service. USPS rules say a mailbox may be used only for matter bearing postage, and the Supreme Court has held that a mailbox is not a public forum. You can refuse a piece, but refused “Postal Customer” mail is thrown away, not returned.

Can PS Form 1500 stop junk mail?

Only from one sender at a time, after it mails you an ad you consider sexually provocative. The form needs the original piece, and the order covers the people named in it. We found no record of it being used against an EDDM sender.

What did Rowan v. Post Office decide?

In 1970 the Supreme Court upheld the law behind prohibitory orders, holding that “a mailer’s right to communicate must stop at the mailbox of an unreceptive addressee.” It did not create a general right to refuse advertising mail.

Has Congress considered a Do Not Mail registry?

Congress has never passed one. The Congressional Research Service found no federal Do Not Mail bill in 2007 or 2008, when at least 19 state legislatures introduced their own; none of those became law.

Sources

  1. 18 U.S.C. 1725, Mail boxes; use restricted to mail
  2. USPS Domestic Mail Manual 508, refusing mail and use of mail receptacles
  3. USPS Domestic Mail Manual 602.3, simplified addresses and disposal of undeliverable mail
  4. U.S. GAO, GAO/GGD-97-85, U.S. Postal Service: Information About Restrictions on Mailbox Access, May 30, 1997
  5. Central Hudson Gas & Electric Corp. v. Public Service Commission, 447 U.S. 557, June 20, 1980
  6. U.S. Postal Service v. Council of Greenburgh Civic Assns., 453 U.S. 114, June 25, 1981
  7. Rowan v. U.S. Post Office Dept., 397 U.S. 728, May 4, 1970
  8. 39 U.S.C. 3008, Prohibition of pandering advertisements
  9. USPS PS Form 1500, Application for Listing and/or Prohibitory Order (PDF), February 2009 edition
  10. USPS Postal Bulletin 22225, Rural Boxholder Non-delivery Request, January 31, 2008
  11. USPS Postal Bulletin 22300, Extension of the Simplified Address Format, December 16, 2010
  12. Postal Regulatory Commission, EDDM-R market test notice, 76 FR 74078, November 30, 2011
  13. USPS final rule, Every Door Direct Mail-Retail, 77 FR 62446 (Federal Register 2012-25059), October 15, 2012
  14. USPS Domestic Mail Manual 144.2.2, EDDM Retail documentation (“do not deliver” addresses)
  15. USPS: Every Door Direct Mail, step 5, “Do Not Deliver Addresses”, accessed October 2026
  16. Postal Accountability and Enhancement Act, Pub. L. 109-435, December 20, 2006
  17. Postal Service Reform Act of 2022, Pub. L. 117-108, April 6, 2022
  18. Congressional Research Service, R43162, The U.S. Postal Service’s Financial Condition: A Primer, December 30, 2014
  19. Mainstream Marketing Services v. FTC, 358 F.3d 1228 (10th Cir.), February 17, 2004
  20. Dex Media West v. City of Seattle (9th Cir.), opinion (PDF), October 15, 2012
  21. Congressional Research Service, RL34643, Do Not Mail Initiatives and Their Potential Effects, September 24, 2008
  22. Printing Impressions: Defeating “Do-Not-Mail” Laws (Mail Moves America), May 1, 2008
  23. FTC: National Do Not Call Registry opens, June 27, 2003
  24. FTC: National Do Not Call Registry FAQs
  25. FTC: CAN-SPAM Act, a compliance guide for business
  26. 47 U.S.C. 227, Telephone Consumer Protection Act
  27. 15 U.S.C. 1681b(e), election to be excluded from prescreened lists
  28. FTC: How to stop junk mail (prescreened offers)
  29. S. 3260, Ending Subsidies for Political Junk Mail Act, introduced November 20, 2025
  30. New York Senate Bill S9440, Do Not Disturb Registry Act, introduced March 12, 2026