Every Door Direct Mail (EDDM) is a USPS program that lets anyone mail to every household on a carrier route - no mailing list, no permit, no mailing house required. That pitch is genuinely appealing, especially if you’ve never mailed before and the idea of building a list or finding a vendor feels like too much.
But “simple” and “right for your business” are not the same thing. EDDM comes with a specific set of constraints that make it the right tool for a narrow range of situations - and the wrong tool for most businesses that try it.
The short answer: EDDM makes sense if you’re mailing a small neighborhood on your own, once, without needing personalization, non-profit rates, or any quantity over 5,000 pieces per day. If any of those conditions don’t apply, there’s a better option.
What EDDM Actually Is
EDDM launched in 2012. The concept: select carrier routes on a USPS mapping tool, print flat-size mail pieces, bundle them yourself in stacks of 50 or 100, and drop them off at the local post office. USPS delivers to every address on the selected routes.
No personalization. Every piece says “LOCAL POSTAL CUSTOMER” as the address. The postage rate is competitive - EDDM was designed to be accessible, and the flat postage rate reflects that. The catch is everything else.
The Constraints You Need to Know Before You Commit
EDDM requires pieces that are either wider than 6″ or taller than 11″. A standard 4″ x 6″ postcard does not qualify. Neither does a letter in a #10 envelope. You’re forced into larger formats - which cost more to print and more per piece to mail.
This is the one that surprises people most. A campaign covering several neighborhoods in two or three zip codes can easily hit 20,000 - 50,000 pieces. Under EDDM rules, that’s a minimum of four to ten separate post office drops, on separate business days. The “simple” program just became a logistics project.
Bundling 10,000 pieces into stacks of 50 or 100 with facing slips takes time - hours of it. Then you have to transport them to the post office. There’s no drop-ship option, no pickup, no production support. This is manual labor that a mailing house would otherwise handle entirely.
EDDM offers a single flat rate. Non-profit organizations that qualify for USPS non-profit postage get no benefit from EDDM - the program doesn’t support it. Through Saturation Mail with a full-service mailing house, non-profit rates are available and the savings are significant at any meaningful volume.
Every EDDM piece is identical. No name, no address, no variable copy. You cannot add “Dear Homeowner” or segment by route. For campaigns where any degree of personalization matters - and research consistently shows personalization lifts response rates significantly - EDDM is not an option.
The Honest Scorecard
- Need more than 5,000 pieces
- Want a standard postcard or letter format
- Are a non-profit organization
- Want any personalization (name, address, custom copy)
- Plan to repeat the mailing on a schedule
- Want a mailing house to handle prep and delivery
- Are mailing across multiple zip codes
- Are mailing under 5,000 pieces
- Targeting one or two carrier routes nearby
- One-time or very infrequent mailing
- Don’t need any personalization
- Have time to bundle and deliver yourself
- Not a non-profit
- Flat-size format works for your design
Put plainly: EDDM was designed for the pizza shop dropping 1,500 flyers in the immediate neighborhood. It works well for that. It was not designed for a business running a real marketing campaign - and when businesses try to scale EDDM, they run into the constraints fast.
What Most Businesses Use Instead
The alternative to EDDM - for everything from 5,000 to 500,000 pieces - is Saturation Mail: USPS Marketing Mail sorted to the carrier-route level. Same neighborhoods, same no-list approach, but handled by a full-service mailing house. Every constraint that limits EDDM either goes away or becomes an advantage:
- Any format qualifies - standard postcards, letters, flats
- No quantity limits
- Non-profit rates available
- Personalization available
- Full prep and postal drop-ship handled by the house
- List provided at no extra charge
EDDM is a program. Saturation Mail is a service.
The difference is who does the work - and who absorbs the constraints.
If you’re genuinely on the fence, the best test is to pull the numbers on a specific campaign. We can tell you exactly what a saturation mailing to your target area would cost, with full service included - and you can compare that to the EDDM rate plus your own labor and format costs. In our experience, the comparison closes the debate quickly.