---
type: faq
title: "What makes leaving business cards in mailboxes effective for marketing?"
description: "It is not effective, and it is not legal. In the United States, mailboxes are federal property reserved for stamped mail, so slipping a card inside can dra"
resource: https://www.4over4.com/faqs/business-cards/what-makes-leaving-business-cards-in-mailboxes-effective-for-marketing
tags: ["Marketing Materials", "faq"]
timestamp: 2026-07-20T18:54:40.856Z
---

# What makes leaving business cards in mailboxes effective for marketing?

It is not effective, and it is not legal. In the United States, mailboxes are federal property reserved for stamped mail, so slipping a card inside can dra

Part of the **Marketing Materials** hub. See [all faq concepts](index.md).

- Page type: faq
- Hub: Marketing Materials
- URL: https://www.4over4.com/faqs/business-cards/what-makes-leaving-business-cards-in-mailboxes-effective-for-marketing