Set up DMARC and see who's sending email using your brand's domain.

Amazon SES Alternative

You can spend all of your time building tools for someone else to send your email. Or send with Postmark and get all the tools you need, while you build your app.

You can get more than just delivery stats

At Postmark, we put in a ton of work to make sure your messages get delivered. Instead of asking you to trust us when we say we have great delivery, we want to prove it with our live delivery data.

  • Gmail

  • Apple

  • Hotmail

  • AOL

  • Yahoo

Time to Inbox data updated every 5 minutes

That's real data piped in straight from our status page. We share this data because our customers deserve more than claims about great delivery speed, they deserve proof.

You shouldn't need to dedicate a massive team to have insight about how your transactional messages are performing.

I was shocked to see Postmark open rates were an 11% improvement over SES in our test. Needless to say we started sending all of our transactional email through Postmark.

Dave Marshall

Dave Marshall

CTO at

Great support is included

Support isn't a luxury when you're sending email for an application. You need to be able to reach out and get answers when there is a problem. It shouldn't cost you extra to talk to a human.

Customer Happiness Rating
  • πŸ˜ƒ Great (95%)
  • πŸ™‚ Okay (2%)
  • πŸ˜” Not Good (3%)

Customer feedback gathered through Help Scout over the past 60 days.

There are no extra costs for Postmark support. You can send us a ticket via email and usually hear back from us within a couple of hours during our normal business hours. Or you can call us, use live chat, or reach out via social media. If you're having delivery problems, our team will do our best to help you get to the bottom of what is happening.

We also have comprehensive developer documentation and a support center packed full of resources to keep you going when our support team is enjoying some well-earned downtime with their families.

We’re here to help!

Take a moment to meet our customer success team.

  • Abdullah Al-hennawy Abdullah
  • Anita Pericic Anita
  • Anna Ward Anna
  • Brian Kerr Brian
  • Dana Chaby Dana
  • Fionnuala Walls Fionnuala
  • Jordan Dibb Jordan
  • Natalie Keshlear Natalie
  • Natalie Robles Natalie
  • Shelley JeΕΌewska Shelley

Unrivaled troubleshooting capabilities

When it's time for troubleshooting, nobody logs and retains more helpful details about the event history and content of messages than Postmark.

Search, filter, and view 45 days of detailed message activity from the activity feed.
Search, filter, and view 45 days of detailed message activity from the activity feed.
Detailed message event logs for every email.
Detailed message event logs for every email.
Full Content
Full Content

With SES, you'll have to manually set up your own services to track and monitor message events. That means building functionality to enable you to suppress delivery to bounces and spam complaints. With Postmark, all of this is taken care of, and you have a rich interface for managing delivery and researching details about each message. Postmark stores this activity for every message for 45 days by default (and retention can be customized from 7 to 365 days if needed). Best of all: it's all included. You don't have to write a single line of extra code.

Pre-built and fully-tested email templates

Save time getting started with our thoroughly documented, pre-built, and exhaustively tested email templates.

Start from a variety of pre-built templates or build your own.
Start from a variety of pre-built templates or build your own.
Edit and tweak your templates directly in Postmark.
Edit and tweak your templates directly in Postmark.
Preview your templates with easily updatable test data.
Preview your templates with easily updatable test data.

Postmark offers a full set of pre-built and exhaustively tested email templates to help you get started. For each of these templates, we've also written extensive guides about best practices for configuration, usability, engagement, copywriting, and more.

Whether you need more templates or just want to custom-build your own set of templates, we've built and open-sourced MailMason, a complete toolset to streamline building and updating a set of consistent transactional emails. It makes it easier build your emails by enabling you to use partials, automatically inline your CSS (or SCSS), test emails in Litmus, automatically generate text equivalents, and much more.

Clipboard with a checklist

What does it take to switch to Postmark from Amazon SES?

Moving your email infrastructure from Amazon SES can take serious effort, which is why we've created this guide to help you switch from Amazon SES to Postmark.

Postmark vs. Amazon SES

Postmark is an excellent Amazon SES alternative, making sending and monitoring email for your application simpler.

Postmark Amazon SES
Transactional emails βœ” βœ”
Bulk/broadcast email βœ”
(New in Postmark: Send your promotional or bulk email via Broadcast Message Streams.)
Separate infrastructure for transactional and bulk email βœ” ✘
SMTP βœ” βœ”
REST API βœ” βœ”
Comprehensive official libraries βœ” βœ”
Community libraries βœ” ✘
Spam score checking βœ” ✘
Spam complaint handling βœ” βœ”
Bounce handling βœ” βœ”
Shared IPs βœ” βœ”
Dedicated IPs βœ”
(Auto-managed based on individual sending volume)
Separate environments with servers βœ” ✘
Pre-made email templates βœ” ✘
Template engine βœ” ✘
Inbox preview βœ”
(Available when you send with Postmark Templates)
Scheduled delivery ✘ ✘
A/B testing ✘ ✘
Email address validation ✘ ✘
Seen something inaccurate? Let us know.
Postmark Amazon SES
Inbound email processing βœ” βœ”
RegEx matching on all email headers ("routes") ✘ ✘
Chain multiple filters ✘ βœ”
UTF-8 encoding βœ” ✘
Raw MIME ✘ βœ”
Strip signature and quote blocks βœ” ✘
Spam filtering βœ” βœ”
Seen something inaccurate? Let us know.
Postmark Amazon SES
Delivery rates βœ” βœ”
Bounce rates βœ” βœ”
Open rates βœ” ✘
Click tracking βœ” ✘
Unsubscribe tracking βœ” ✘
Spam rates βœ” βœ”
Full message storage βœ”
(45 days)
Automatic tagging ✘ ✘
Custom tagging βœ” ✘
Custom header metadata tag ✘ ✘
Custom tracking domain ✘ ✘
Geolocation data βœ” ✘
Email client and device tracking βœ” βœ”
Real-time notifications βœ” βœ”
Seen something inaccurate? Let us know.
Postmark Amazon SES
Time to Inbox βœ” ✘
System availability API βœ” βœ”
Service availability API βœ” ✘
Seen something inaccurate? Let us know.
Postmark Amazon SES
Dedicated support team βœ” βœ”
24/7 support ✘ βœ”
Email support βœ” βœ”
Phone support βœ” βœ”
Live chat βœ” βœ”
Seen something inaccurate? Let us know.

OMG! @postmarkapp is a chef's kiss. Mandrill or SendGrid is never again.

Yegor Zubarets

Yegor Zubarets

via Twitter

Every time I integrate @postmarkapp with an app I find myself thinking how great the onboarding is. So refreshing.



via Twitter

Currently switching over all my transactional email to @postmarkapp. Great experience so far – awesome job, guys!

Michael Trojanek

Michael Trojanek

via Twitter

I highly recommend @postmarkapp for transactional email. Dedicated to delivery, great help docs, and a clear and simple UI.

Tom Graham

Tom Graham

via Twitter

@postmarkapp great job on documentation, and templating. I got up and running in a matter of minutes!

Luis Pazmino

Luis Pazmino

via Twitter

Personal experience of working with a few other providers recently is that @postmarkapp definitely seems to have the upper hand on speed.

Robert Rawlins‏

via Twitter

Wow, @gmail deliveries via @postmarkapp is really fast, ~1s! Seems to have an excellent #ISP reputation. #transactional #mails #service

David Jimenez

David Jimenez

via Twitter

Made the switch to @postmarkapp today. The customer service and delivery rates are awesome, but the thing I love is EVERYTHING IS YELLOW!

Samuel Goudie

Samuel Goudie

via Twitter

BTWΒ @postmarkapp is bloody lovely



via Twitter

Postmark blows every other transactional email product out of the water.

Kyle Racki

Kyle Racki

CEO at Proposify

On top of all the tracking info, in almost four years with Postmark, I can’t remember a single time an outage impacted our business.

Joel Flory

Joel Flory


How much does Postmark cost?

Emails per month
Monthly price
Additional emails

Need more emails?

Get in touch to discuss our high-volume tiers.

Do you offer a free trial?

All new accounts start off on our free developer plan with 100 emails per month. Use it for however long you need, it doesn’t expire.

Do you offer dedicated IPs?

Dedicated IPs are available to high-volume senders. Read about our policy for issuing dedicated IPs.

What happens if I go over my plan’s monthly email limit?

Extra emails on our paid plans are calculated at the end of your billing cycle and included with your plan cost for the upcoming month.

What payment types do you accept?

We accept payments via Visa, MasterCard, American Express, Diners, and JCB. We do not accept PayPal or Purchase Orders.

Can I send bulk marketing email through Postmark?

Yes you can! To comply with industry best-practices and to maintain our high deliverability, it's important though that transactional and marketing emails never mix. That's why we created Message Streams, a parallel but completely separate sending infrastructures for your transactional and broadcast emails.

Do you offer high-volume plans?

Yes! Contact us to learn more about our high-volume pricing.

Are you the only Amazon SES alternative out there?

Actually, we're notβ€”and since we know that Postmark might not always be the right choice, we put together this list of Amazon SES alternatives + a comparison spreadsheet for you to check out.

Send with the thousands of other companies who already trust Postmark

Let Postmark put an end to your email headaches

Fast and reliable delivery. Easy-to-use API. Fantastic support.