Postcard & Mailer Guides

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5 Quick Steps to Send Direct Mail Postcards

5 Quick Steps to Send Direct Mail Postcards

How to send direct mail postcards in 5 steps: set a goal and offer, design the card, build a clean list, address and sort, and choose a postage rate.

Marcus Chen
How to 4X Your Direct Mail Results

How to 4X Your Direct Mail Results

How to 4X your direct mail results with five data-backed tactics: mail more volume, tighten your list, retarget visitors, and reach the same people again.

Marcus Chen
How to Create Newsletters for Direct Mail

How to Create Newsletters for Direct Mail

Plan, design, and print a direct mail newsletter that lands in the mailbox and gets read. Sizes, stocks, costs, and mailing options from 4OVER4.COM.

Marcus Chen
USPS EDDM Step-by-Step Guide to Sizes, Reviews and Costs

USPS EDDM Step-by-Step Guide to Sizes, Reviews and Costs

USPS EDDM made simple: what Every Door Direct Mail is, which businesses it fits, postage savings, qualifying postcard sizes, and real costs.

Marcus Chen
A Guide to Pairing Postcards and Envelope Sizes

A Guide to Pairing Postcards and Envelope Sizes

Pair every standard postcard size with the right envelope: A2, A6, A7, and A9 matches, USPS size rules, and a clear postcard-to-envelope chart.

Marcus Chen
Popular EDDM Postcard Sizes and USPS Mailing Guidelines

Popular EDDM Postcard Sizes and USPS Mailing Guidelines

The three most popular EDDM postcard sizes, the USPS size rules every mailer must clear, and how to pick the right size and mail it without a permit.

Nadia Petrov
Postcards vs Greeting Cards, Which Should You Print?

Postcards vs Greeting Cards, Which Should You Print?

Postcards or greeting cards? Compare format, postage, cost, and use cases, then print either one at 4OVER4.COM with premium stocks and finishes.

Marcus Chen
EDDM Printing and Mailing That Reaches Every Door in the Neighborhood

EDDM Printing and Mailing That Reaches Every Door in the Neighborhood

EDDM printing and mailing saturates a whole neighborhood with USPS-sized postcards and flyers, no mailing list required. Map your routes and mail smarter today.

Tobias Reed
How to Address a Postcard, Step by Step

How to Address a Postcard, Step by Step

How to address a postcard the right way: which side the address goes on, where the stamp and return address sit, and how to address them in bulk.

Nadia Petrov
How to Address Save-the-Date Postcards

How to Address Save-the-Date Postcards

Address save-the-date postcards the right way: guest names and titles, the address layout, stamp placement, wording examples, and where to print.

Sofia Ramirez
What Is EDDM? Meaning, Cost & USPS Rules

What Is EDDM? Meaning, Cost & USPS Rules

What is EDDM? Learn how Every Door Direct Mail works: USPS rules, postcard sizes, route targeting, and real costs per piece. See if EDDM fits your campaign.

Marcus Chen
Nadia Petrov
Nadia Petrov Customer Education Writer at 4OVER4.COM

Direct mail still lands when the size, the list, and the offer line up, and stumbles when any one of them is off. These guides cover building or renting a mailing list, EDDM rules, adding a QR code, and the postcard formats that clear USPS and actually get opened.

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