API/Integrations/Postmark
Postmark
Integration Guide

Send Receipts via Postmark

Generate professional receipt images and deliver them via Postmark—the fastest transactional email service. Best-in-class deliverability for receipts that matter.

Key Features

Fastest Delivery

Industry-leading delivery speed for time-sensitive receipts.

Best Deliverability

Dedicated transactional infrastructure—no marketing spam.

Templates API

Use Postmark templates with receipt images.

Detailed Analytics

Track every receipt email's journey.

What You Get

Professional Receipt Images

  • Thermal POS style: Authentic dot-matrix fonts, paper textures, and realistic thermal print appearance
  • Modern clean style: Professional layouts for digital documentation
  • Customizable: Add logos, adjust colors, custom fields and layouts

Hosted Receipt URLs

  • Public URLs: Each receipt is hosted and accessible via unique URL
  • Embed anywhere: Perfect for emails, dashboards, expense reports
  • 30-90 day storage: Receipts hosted based on your plan tier

Use Cases

1

Payment Confirmations

Deliver receipts immediately after payment.

2

Password Reset + Receipt

Include receipts in account-related emails.

3

Time-Sensitive Receipts

Receipts that must arrive instantly.

4

High-Value Transactions

Ensure important receipts reach customers.

How to Connect

1

Generate Receipt

Create receipt image via EasyReceiptMaker API.

2

Build Template

Create Postmark template with receipt embed.

3

Send via Postmark

Trigger transactional email via Postmark API.

💡

Pro Tip: Use the Visual Builder

Don't write JSON from scratch! Design your receipt visually in our receipt generator, then click "API Payload" to copy the exact JSON structure. Use that payload as your template—just swap in dynamic data (amounts, dates, customer names).

Try Visual Builder →

API Quick Reference

# Generate a receipt

POST https://www.easyreceiptmaker.com/api/v1/receipts

# Headers

Authorization: Bearer erm_sk_your_api_key

Content-Type: application/json

# Response

{
  "success": true,
  "url": "https://receipts.easyreceiptmaker.com/api/abc123.png",
  "expires_at": "2025-01-05T00:00:00.000Z"
}

Other Integrations

Ready to integrate?

Get your API key and start generating receipts with Postmark in minutes.