How Does Disclaimer
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How Does EDDM Work is an independent website. It is not affiliated with, endorsed by or sponsored by the United States Postal Service.
USPS, United States Postal Service, EDDM, EDDM Retail and Every Door Direct Mail are trademarks of the United States Postal Service. We use these names only to describe the USPS service this site explains.
Information only
This site gives general information about how Every Door Direct Mail works. It isn't legal, financial or professional advice.
Rules and prices change
We check our pages against USPS sources and show the date each page was last checked. USPS can change prices, size rules and procedures at any time, and individual Post Offices sometimes apply rules differently. Before you print or mail, confirm the current rules with USPS or your Post Office. We're not responsible for rejected mailings, extra costs or other losses from relying on this site.
Cost calculator
The cost calculator gives estimates only. Your actual postage is set by USPS at the time of mailing, and your printing cost depends on your printer.
Last updated: November 6, 2026