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?What Is EDDM?

EDDM vs. shared mail

You've probably had an envelope full of coupons from lots of local businesses. That's shared mail: several advertisers in one package. USPS's price list calls a version of it "Marriage Mail". Here's how it compares with sending your own EDDM piece.

Checked November 7, 2026

Shared mail many advertisers, one package
Youroffer
EDDM just you, your own piece

Shared mail

A company puts many advertisers' offers into one envelope or bundle and mails it to every home in an area. You buy a spot in the package.

  • Good: you share the postage, so it can cost less per home. Someone else handles design rules, printing and mailing.
  • Not so good: your offer sits next to many others, sometimes competitors. You don't control the timing, the area or how your ad looks next to the rest.

EDDM

Your own piece, on its own, to the routes you pick.

  • Good: nobody else in the mailbox with you. You choose the size, design, timing and area.
  • Not so good: you pay for all the postage and printing yourself, and you do the work (or pay someone).

Which one?

If you...Try
want the lowest cost per home and don't mind sharingShared mail
want to stand out alone, with your own designEDDM
want to pick exact routes and datesEDDM
have no time to design or prepare mailShared mail, or an EDDM service

Quick questions

What is shared mail?

A mailing that combines several advertisers' offers into one package delivered to every home in an area.

Is EDDM better than coupon packs?

Neither is always better. EDDM gives you control and attention. Shared mail can cost less per home.