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What is Postmark?

Postmark removes the headaches of delivering and parsing transactional email for webapps with minimal setup time and zero maintenance.
Postmark is a tool in the Transactional Email category of a tech stack.

Who uses Postmark?

104 companies reportedly use Postmark in their tech stacks, including Swat.io, Walls.io, and Graphy.

105 developers on StackShare have stated that they use Postmark.

Postmark Integrations

Heroku, Gravity Forms, sendwithus, Flute Mail API, and EmailJS are some of the popular tools that integrate with Postmark. Here's a list of all 5 tools that integrate with Postmark.

Why developers like Postmark?

Here鈥檚 a list of reasons why companies and developers use Postmark
Private Decisions at about Postmark
Private to your company

Here are some stack decisions, common use cases and reviews by members of with Postmark in their tech stack.


Postmark is used for user-triggered event emails. Postmark

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Public Decisions about Postmark

Here are some stack decisions, common use cases and reviews by companies and developers who chose Postmark in their tech stack.


We use Postmark for application-specific transactional emails like notifications and digests for our users. Postmark

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Postmark's Features

  • Create a new virtual server- Instant access to our infrastructure, no waiting required. Create as many servers as you want, for each of your web applications and environments.
  • Drop code into your app- Swap in our SMTP endpoint, or get started with our APIs using one of our send API libraries for Ruby, Rails, .NET, Python, PHP, and more.
  • Send emails and track delivery- A beautiful interface to monitor volume, bounces, spam complaints, and send activity. View full email content to troubleshoot issues.
  • Parse replies & other inbound email- Let Postmark automatically convert email replies into simple JSON documents and send them into to your application for processing.

Postmark Alternatives & Comparisons

What are some alternatives to Postmark?
Mailgun is a set of powerful APIs that allow you to send, receive, track and store email effortlessly.
SparkPost is the world鈥檚 #1 email delivery provider. We empower companies with actionable, real-time data to send relevant email to their customers which increases engagement and both top and bottom line revenue.
Twilio SendGrid
Twilio SendGrid's cloud-based email infrastructure relieves businesses of the cost and complexity of maintaining custom email systems. Twilio SendGrid provides reliable delivery, scalability & real-time analytics along with flexible API's.
Mandrill is a new way for apps to send transactional email. It runs on the delivery infrastructure that powers MailChimp.
Amazon SES
Amazon SES eliminates the complexity and expense of building an in-house email solution or licensing, installing, and operating a third-party email service. The service integrates with other AWS services, making it easy to send emails from applications being hosted on services such as Amazon EC2.
See all alternatives

Postmark's Followers
105 developers follow Postmark to keep up with related blogs and decisions.
Jonathan Brown
Marek Loder
Vas Fedorov
Brittany Steed
Jamie Robben
Ethan Moses
Mahesh Govindan
Tony Cast