What Is EDDM? The Junk Mail Nobody Can Stop

Every piece of advertising mail has a postal indicia (a preprinted mark in the upper-right corner of an envelope or package that takes the place of a traditional adhesive stamp). Learn five markings and you can triage a week of mail in seconds, because the markings tell you which pieces you can make stop.

The one combination with no fix is ECRWSS over a generic address line. That is EDDM or its permit-mail cousin, and the rest of this guide is about why it can’t be stopped.

Every Door Direct Mail is a USPS program, launched in 2011, that sells delivery by geography instead of by list. An advertiser picks carrier routes on a map, prints one flat piece for every address on those routes, and the carrier delivers to every active mailbox, no names required.

The retail version is deliberately friction-free: no bulk-mail permit, a minimum of 200 pieces, a maximum of 5,000 per day per ZIP code, flats up to 3.3 ounces, paid at the Post Office counter. Larger mailers run the same play through bulk entry with no daily cap.

USPS’s own pitch to businesses is the tell: no address lists, no names, no research. The industry that resells EDDM says the same thing more bluntly: the carrier route is the audience.

Here is what it costs to put a piece of paper in your mailbox, per piece, at the rates that took effect July 12, 2026.

A local business reaches your door for about a third of what a stamp costs you. A nonprofit saturation mailer pays roughly a fifth.

The discount is not charity; it is bought with labor. Saturation mail arrives at the post office pre-bundled in the exact order the carrier walks, one piece per door, so USPS does no sorting at all. Regulators call this worksharing: the discount is supposed to mirror the cost USPS avoids.

And here is the fact that reframes the whole program: saturation mail is among USPS’s most profitable products. The Postal Regulatory Commission’s FY2024 compliance review put saturation and high-density letters at 223% cost coverage, and saturation flats (the EDDM tier) at 157%. EDDM is not a burden USPS carries reluctantly.

USPS’s own marketing tools and communications name the customer base: small businesses, restaurants, realtors, and local political campaigns. Add the trades that live on neighborhood radius: dentists, HVAC and roofing companies, gyms, grocery stores, and the grand-opening retailer.

The economics select for exactly those senders. A national brand with a data budget buys addressed Marketing Mail aimed at individuals. A pizzeria has no list and does not need one, because for roughly 26 cents a door it can paper every household within delivery range.

That is why EDDM skews so local, and why it turns over so fast. The menu, the just-listed postcard, and the coupon sheet are not trying to know you. They are trying to be in the kitchen drawer when the furnace dies.

And because the program sells geography to any lawful advertiser, the mix gets strange. Watchdog sites have cataloged everything from tobacco ads to religious tracts arriving as “Postal Customer” mail, addressed to no one, deliverable to everyone.

EDDM is often described as untargeted. That is not quite right. The USPS route-picking tool lets an advertiser filter carrier routes by average age, household income, and household size, using Census data laid over each route.

So the advertiser never learns your name, and does not need to. The demographics of your street are targeting enough: pick the routes where incomes support a $40,000 kitchen remodel, and the remodeler’s flyer lands in every box on them.

We have written before about how retailers build profiles from something as small as a ZIP code at the register. EDDM is the same logic run in reverse: instead of attaching data to your name, it aims paper at the data your neighborhood already gives off. No list, no name, and nothing for a privacy law to delete.

Now the strange part, which starts with a question most people have never asked: who owns your mailbox?

You do. You bought it, you installed it, you are required to maintain it.

But since 1934, federal law (18 U.S.C. § 1725) has made it an offense for anyone to place anything in it without postage. Your property, reserved by criminal statute for one user: paid US Mail.

Congress wrote that rule for good reasons. Utility companies had begun hand-delivering bills and circulars to skip postage, draining postal revenue, and lawmakers also wanted the box secure: if only paid mail may enter, anything inside is US Mail, protected by federal theft statutes and the Postal Inspection Service. The Supreme Court upheld the rule in 1981 on exactly those grounds, calling the letterbox “an essential part of the nationwide system for the delivery and receipt of mail.”

The same era built the Postal Service’s founding promise, still in the statute today: to “bind the Nation together through the personal, educational, literary, and business correspondence of the people.” The mailbox was locked to protect correspondence, the mail people chose to send each other.

EDDM runs on that same locked box, pointed the other way. The exclusivity that was built to keep unpaid circulars out now guarantees paid circulars a protected, criminal-law-backed channel into every home, with no way for the homeowner to decline.

The one Supreme Court case that sided with the resident over a sender, Rowan v. Post Office in 1970 (“a mailer’s right to communicate must stop at the mailbox of an unreceptive addressee”), only works sender by sender, against mail addressed to you. Saturation mail from a rotating cast of local advertisers slips through it entirely.

One boundary survives, and it is telling. USPS rules say a door slot is not a letterbox. A flyer pushed through your door without postage is legal; the identical flyer in your curbside box is a federal offense.

The law never protected your home from advertising. It protected the mailbox, and then sold the mailbox’s protection as a delivery guarantee.

For most of a century, nameless “Postal Customer” addressing was a narrow exception. It was allowed on rural routes and for government mailings; a business that wanted city-route delivery had to address every piece, which meant buying or building a list.

That changed on January 2, 2011, by administrative rule. USPS revised its Domestic Mail Manual to let any business mail saturation flats with simplified addresses on city routes, and its Inspector General noted it was the first time since 1953 that small businesses could do so. No act of Congress, no vote: a Postal Bulletin notice and, in 2012, a Federal Register rule formalizing EDDM Retail.

The motive was never hidden. USPS was losing First-Class volume to email and needed high-margin advertising mail; the OIG projected simplified-address mail could improve net income by roughly $1.2 billion a year, estimating that a dollar of saturation mail revenue carried about 55 cents of profit.

USPS faced (and faces) a real solvency crisis, saturation mail genuinely earns money that subsidizes universal service, and the agency broke no law.

And also: a protection built around the sanctity of correspondence was repurposed, administratively, into a guaranteed advertising channel that some 130 million American households never got a vote on and cannot opt out of.

So how much does EDDM actually offset the losses? USPS publishes no EDDM profit line, but the regulator’s cost data lets you bound it: at the saturation-flats cost coverage of 157% (PRC, FY2024), EDDM’s $617 million in FY2025 revenue implies roughly $225 million earned over its attributable costs. That offsets about 2.5% of the $9.0 billion net loss, or about 8% of the year’s $2.7 billion controllable loss: real money, and nowhere near a rescue.

If you want the full argument about junk mail’s role in USPS’s finances, including the strongest case for the defense, that is our piece on whether banning junk mail would bankrupt the USPS.

The structural reason comes first. An opt-out removes a record about you from a database. EDDM has no database of recipients, so there is nothing to remove; even a fully cooperative advertiser could not exclude your house, because the program carpet bombs the entire carrier route.

The operational layer is USPS policy. Saturation mail is addressed to the location, so carriers deliver it to every active address on the route. Refusing a piece, returning it, or posting a sign changes nothing about what the route requires.

A legal reason closes the loop. The mailbox statute keeps everyone but USPS out of the box, the one consumer opt-out statute (39 U.S.C. § 3008, upheld in Rowan) works only against a named sender mailing to a named you, and no Do Not Mail registry exists.

Every mechanism for an opt-out presumes mail is addressed to someone. EDDM’s entire design is that it is not.

For EDDM itself: recycle it and move on. If you want the rules changed, tell your representatives; consumer groups have pushed for a federal Do Not Mail registry for nearly two decades, and the idea resurfaces in state legislatures. Nothing you can sign or install stops it today.

For everything else, the picture flips. The overwhelming majority of junk mail is addressed to you by name from a list, and every one of those senders can be told to stop. The efficient way is one photo per mailer: PaperKarma identifies the sender and files the opt-out, across catalogs, credit offers, charities, local businesses and previous-resident mail alike.