---
type: guide
title: "Postcards vs Letters for Direct Mail and Which One Wins"
description: "Postcards vs letters for direct mail compared on open rates, cost and USPS rules, with the smart pick for most campaigns, then print at 4OVER4."
resource: https://www.4over4.com/guide/postcards-vs-letters-which-wins-your-campaign
tags: ["guide"]
timestamp: 2026-08-08T21:25:50.722Z
---

# Postcards vs Letters for Direct Mail and Which One Wins

Postcards vs letters for direct mail compared on open rates, cost and USPS rules, with the smart pick for most campaigns, then print at 4OVER4.

See [all guide concepts](index.md).

- Page type: guide
- URL: https://www.4over4.com/guide/postcards-vs-letters-which-wins-your-campaign