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SendPost’s Postmark integration allows you to use your existing Postmark account as a Third-Party Sending Provider (TPSP). This means you can:
  • Send emails through Postmark using SendPost’s API with templates (Postmark Templates API)
  • Use a Message Stream of your choice (transactional, broadcast, etc.) configured at setup
  • Receive and process Postmark events (opens, clicks, deliveries, bounces, spam complaints) in SendPost
  • View all email analytics in one centralized dashboard
  • Apply SendPost’s intelligent routing and throttling to your Postmark traffic

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Why Use Postmark with SendPost?

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What’s Covered in This Guide

Setting Up

Configure Postmark as a provider with Server API Token and Message Stream selection

Sending Emails

Send template-based emails through Postmark using the SendPost API

Event Types

Understand Postmark event types and how they map to SendPost

Analytics

Track opens, clicks, bounces, and configure rate limiting

Troubleshooting

Common issues, FAQs, and getting help

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Quick Reference

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Key Endpoints

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Setup Checklist

1

Get Postmark Server API Token

Create or copy your Server API Token from Postmark
2

Add Provider

Add Postmark provider in SendPost (type: Postmark), enter token
3

Fetch and Select Message Stream

Click “Fetch message streams” and select one stream (e.g. outbound)
4

Use the auto-created IP Pool

An IP pool is auto-created when the provider is saved (100% to Postmark); find it via profile icon (top right) → IP Pools
5

Whitelist Domain (optional)

Optional: whitelist your sending domain in SendPost to enable domain-level stats for Postmark
6

Test

Send a test email with ippool and tpspTemplate (template required for Postmark)
7

Confirm Events

Confirm events appear in SendPost analytics (PM* event types)