---
canonical: "https://www.softatlas.io/poplar/products/api-mailing"
name: "API Mailing"
provider: "Poplar"
category: "Marketing / Marketing Automation / Campaign Automation"
review_count: 0
ai_powered: false
website: "https://heypoplar.com/api-mailing"
updated: "2026-07-30"
---

# API Mailing

By [Poplar](/poplar.md)

API Mailing provides businesses with the ability to automate and personalize direct mail campaigns through API integration, enhancing the reach and impact of marketing efforts.

## Features
- Automate direct mail campaigns through API integration
- Personalize mail pieces using first-party data
- Trigger mailings based on real-time data
- Generate creative assets for mailings via API
- Track attribution and update audiences in real time
- Validate integration with a dedicated test key
- Integrate with ESPs, CRMs, and Martech platforms
- Manage creative and submit orders through API endpoints

## Built for
MARKETERS, DEVELOPERS

Source: https://www.softatlas.io/poplar/products/api-mailing