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Postmark
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Added:10/27/2025
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What is Postmark

Postmark is an email delivery service that sends your automated emails using modern technology. You can connect it to your website or app through their API or SMTP settings, and it handles the rest. Unlike regular email services, Postmark specializes in transactional emails - the important messages your customers expect right away.

The platform includes tools for tracking email delivery, viewing open rates, and managing bounce notifications. It also offers ready-made email templates that look good on all devices. Postmark separates your automated emails from marketing emails to keep delivery rates high.

The service runs on reliable servers around the world and includes helpful support from email experts. You start with a free account that includes 100 emails monthly, and you can upgrade when you need more.

How to Use Postmark

Using Postmark is simple for developers and business owners. Here are the main steps:

  • Create a free account on the Postmark website and complete the setup process.

  • Add your domain and verify it by following the simple instructions they provide.

  • Choose how you want to send emails - either through their API for custom integration or SMTP for quick setup with existing tools.

  • Use their pre-built templates or create your own emails with their template builder.

  • Send test emails to make sure everything works correctly before going live.

  • Monitor your email activity through the dashboard, where you can see delivery status, open rates, and any issues.

  • Set up message streams to separate your transactional emails from newsletters or promotional content.

Their documentation includes code examples in many programming languages, making integration quick even for beginners.

Features of Postmark

  • Fast email delivery to inbox in seconds

  • API and SMTP integration options

  • Pre-built responsive email templates

  • Detailed tracking and analytics

  • Message streams for email separation

  • Bounce and spam monitoring

  • Expert customer support team

  • DMARC security tools included

  • Webhook notifications for events

  • Multiple programming language libraries

  • Domain authentication assistance

  • Real-time delivery statistics

Postmark Pricing

Free Developer

Free

What's included:
  • 100 emails per month
  • Never expires
  • Full API and SMTP access
  • Email templates
  • Basic tracking and analytics
  • 45 days message history
  • Community support
Basic

$15 /mo

What's included:
  • 10,000 emails included
  • Extra emails at $1.80 per 1,000
  • Up to 4 users
  • Up to 5 servers
  • Up to 15 message streams
  • Up to 5 signature domains
  • Email support
  • All core features
Most Popular
Pro

$16.5 /mo

What's included:
  • 10,000 emails included
  • Extra emails at $1.30 per 1,000
  • Up to 6 users
  • Up to 10 servers
  • Up to 30 message streams
  • Up to 10 signature domains
  • Inbound email processing
  • Priority support
Platform

$18 /mo

What's included:
  • 10,000 emails included
  • Extra emails at $1.20 per 1,000
  • Unlimited users
  • Unlimited servers
  • Unlimited message streams
  • Unlimited signature domains
  • Inbound email processing
  • Premium support
  • Team collaboration tools
Enterprise

Custom

What's included:
  • Custom email volume
  • Dedicated IP addresses
  • Custom message retention
  • Priority onboarding
  • Dedicated account manager
  • SLA guarantees
  • Custom contracts available
  • Volume discounts

FAQ's About Postmark

Is Postmark free to use?
Yes, Postmark offers a free Developer plan that includes 100 emails per month and never expires. This is perfect for testing or small projects. When you need more emails, paid plans start at $15 per month for 10,000 emails.
How is Postmark different from other email services?
Postmark specializes in transactional emails (like password resets and notifications) and focuses on speed and reliability. Your emails reach the inbox up to 4 times faster than competitors. They also separate transactional and marketing emails to maintain excellent delivery rates.
Can I send marketing emails with Postmark?
Yes! Postmark supports both transactional and marketing emails through Message Streams. This feature uses separate infrastructure for each type, so your important transactional emails maintain high delivery rates while you can still send newsletters and promotions.
What programming languages does Postmark support?
Postmark offers official libraries for Node.js, Ruby, Python, PHP, .NET, and Java. You can also use standard SMTP with any programming language or email-sending tool. Their documentation includes code examples for easy integration.
Does Postmark offer customer support?
Yes, Postmark provides excellent support from email experts. They respond to most questions within three hours during business hours and offer live chat for instant help. All plans include full support at no extra cost, and they monitor the service 24/7 for any issues.

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Postmark – Fast and Reliable Email Delivery Service for Developers