Not as a straight swap. Every Door Direct Mail (EDDM) goes to postal routes, not to your customer list. A route reaches every address on it. That is not the same as reaching every customer you mean to warn.
Reviewed October 17, 2026
What EDDM does
USPS describes EDDM as a way to pick neighborhoods and postal routes. The selection tool has location and demographic filters. USPS: EDDM selection
The pieces are addressed "Postal Customer" and go to the addresses on the selected routes. USPS: EDDM addressing That starts from a map, not from your account list.
For EDDM Retail, USPS requires at least 200 and allows up to 5,000 pieces per day per ZIP Code. USPS: EDDM Retail quantities
USPS counts EDDM flyers, postcards and other flats as Marketing Mail products. USPS: EDDM mailpieces Do not assume your current mailpiece fits that product.
Test the coverage first
As a planning exercise, lay the routes you would pick next to your real customer addresses. Mark the customers outside the routes. Mark the addresses on the routes that are not customers. Give that result to the person who approves your warning program.
A route count is not a match to your customer file. Take the coverage question to your attorney or insurer before you propose a change in how you deliver the notice.
What should a quote comparison show?
Ask each quote who gets the piece, what the piece looks like, and what happens to addresses outside the area. Compare the same scope in each one. A lower postage number cannot tell you whether the notice reaches the people you mean to reach.
General information, not legal advice. Talk to your own attorney or insurer about who your company must send a notice to.
Get a quote for an addressed Duty to Warn mailing and tell us how many customers you mail.
About Bill Stomp
Bill Stomp built Propane Safety Pro. He is a war veteran who ran over 87 propane branch offices across 12 states, and he has helped more than 200 propane companies improve their profits, sales, safety and operations.