StackShareStackShare
Follow on
StackShare

Discover and share technology stacks from companies around the world.

Follow on

© 2025 StackShare. All rights reserved.

Product

  • Stacks
  • Tools
  • Feed

Company

  • About
  • Contact

Legal

  • Privacy Policy
  • Terms of Service
  1. Stackups
  2. Utilities
  3. Email Services
  4. Transactional Email
  5. Postmark vs SparkPost

Postmark vs SparkPost

OverviewDecisionsComparisonAlternatives

Overview

Postmark
Postmark
Stacks347
Followers184
Votes52
SparkPost
SparkPost
Stacks135
Followers115
Votes14

Postmark vs SparkPost: What are the differences?

Developers describe Postmark as "Email delivery for web apps - done right". Postmark removes the headaches of delivering and parsing transactional email for webapps with minimal setup time and zero maintenance. On the other hand, SparkPost is detailed as "Email Delivery and Analytics for Developers and Enterprises". SparkPost is the world’s #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.

Postmark and SparkPost belong to "Transactional Email" category of the tech stack.

Some of the features offered by Postmark are:

  • 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.

On the other hand, SparkPost provides the following key features:

  • Quick and easy SMTP or REST API integration
  • Free trial
  • Real-time & predictive analytics

"Simple" is the top reason why over 17 developers like Postmark, while over 8 developers mention "I could start sending real emails in less than 5 mins" as the leading cause for choosing SparkPost.

Docplanner, Meetupcall, and Lighthouse are some of the popular companies that use Postmark, whereas SparkPost is used by Pinterest, Dial Once, and DocEngage. Postmark has a broader approval, being mentioned in 66 company stacks & 15 developers stacks; compared to SparkPost, which is listed in 49 company stacks and 14 developer stacks.

Share your Stack

Help developers discover the tools you use. Get visibility for your team's tech choices and contribute to the community's knowledge.

View Docs
CLI (Node.js)
or
Manual

Advice on Postmark, SparkPost

Slawomir
Slawomir

Head of Product at Coresender

Oct 15, 2020

Decided

Of course we chose Coresender to send our own transactional emails :) So I thought I'll let you know how we use it.

  • We set up separate sending accounts for all company needs, eg. transactional emails, monitoring alerts, time to inbox. We even configured our office printers to send emails through Coresender.

  • We have a real-time and extremely usable view into what emails go through each account, so each time anybody reports an email not arriving we're able to assist them in a few seconds

  • We utilize our message timeline feature, so we can learn eg. if people are clicking on password reset links

  • We always know how many of our onboarding emails are being opened which helps us improve them

  • Finally, we have full controll over our suppressions lists, so we can add (and remove!) from them whenever necessary.

To sum up, at Coresender we're eating our own dogfood and it helps us stay connected to the product and understand our customers better.

88.5k views88.5k
Comments
Ben
Ben

May 18, 2020

Decided

While building our authentication system, we originally picked Mailgun. However, emails took minutes to arrive and some of them didn't get delivered - or got delivered to spam.

We started looking for a new provider, and settled on Postmark. We love that they track time-to-inbox, it makes me feel they really care about going above and beyond to provide a good service.

62.8k views62.8k
Comments

Detailed Comparison

Postmark
Postmark
SparkPost
SparkPost

Postmark removes the headaches of delivering and parsing email for webapps with minimal setup time and zero maintenance.

SparkPost is the world’s #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.

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.
Quick and easy SMTP or REST API integration; Free trial;Real-time & predictive analytics;Performance and scalability;Superior deliverability;Powerful templating language;Message event log webhooks and API;Email relay webhooks;Subaccounts;Advanced security options;Comprehensive REST API and documentation; Pre-built client libraries;Excellent support;Developer hub
Statistics
Stacks
347
Stacks
135
Followers
184
Followers
115
Votes
52
Votes
14
Pros & Cons
Pros
  • 18
    Simple
  • 10
    Great analytics
  • 8
    Email, done right
  • 5
    Easy setup
  • 5
    Heroku Add-on
Cons
  • 1
    No 24x7 support
Pros
  • 10
    I could start sending real emails in less than 5 mins
  • 2
    Email don't end up in spam after DNS verification
  • 1
    Flexible, robust API
  • 1
    Very easy to integrate with Laravel
Cons
  • 1
    Suspended paid acount without warning or reason
  • 1
    Only free for 100 emails/day
  • 1
    Spam trap reports are suspicious b/c all users opted in
  • 1
    New dedicated ip blacklisted by some clients
  • 1
    Support won't answer mail (9h so far)
Integrations
No integrations available
Moxtra
Moxtra
Elixir
Elixir
Zapier
Zapier
C#
C#
sendwithus
sendwithus
Iterable
Iterable
WordPress
WordPress
Django
Django
Python
Python
PHP
PHP

What are some alternatives to Postmark, SparkPost?

Mandrill

Mandrill

Mandrill is a new way for apps to send transactional email. It runs on the delivery infrastructure that powers MailChimp.

Twilio SendGrid

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.

Mailgun

Mailgun

Mailgun is a set of powerful APIs that allow you to send, receive, track and store email effortlessly.

Amazon SES

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.

sendwithus

sendwithus

Send email from your app with a simple API call, Sendwithus manages the rest. Templates, testing, data management, segments, and analytics are all accessible through a friendly dashboard.

Mailjet

Mailjet

Mailjet is a real-time Cloud Emailing platform: scalable, agile and flexible. Our unique algorithm boosts your deliverability and our platform provides in-depth insight so you can optimize more than ever.

Mailtrap

Mailtrap

We offer one platform that covers all email-related needs in one place: testing, sending, and in-depth tracking to control how email infrastructure works and performs.

Apostle.io

Apostle.io

Transactional emails are the forgotten step child of internet marketers. Apostle.io empowers marketers to manage transactional emails themselves, as they would their list based campaigns. Preview, Update, Analyse and Test your transactional email all in one place.

Nodemailer

Nodemailer

It is a single module with zero dependencies – code is easily auditable. The email delivery is Secure using TLS/STARTTLS. You can use HTML content, as well as plain text alternative.

Resend

Resend

It is a modern email sending platform focused on providing the best developer experience. Build, test, and deliver transactional emails at scale.

Related Comparisons

Postman
Swagger UI

Postman vs Swagger UI

Mapbox
Google Maps

Google Maps vs Mapbox

Mapbox
Leaflet

Leaflet vs Mapbox vs OpenLayers

Twilio SendGrid
Mailgun

Mailgun vs Mandrill vs SendGrid

Runscope
Postman

Paw vs Postman vs Runscope