✨ NEW! Introducing Postmark’s Retention Add-on
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Two paper planes.

Migration Guides

Switching to Postmark? Our handy migration guides have everything you need to know about making the shift.

Still on the fence about switching to Postmark?

Here’s what our customers think of us.

I came from Mailgun, which gave me headaches. Every second counts when we send an alert to gamers. I love the fact that I can see when mails are opened and how long the whole process took. It just works, which is not so obvious apparently (looking at Mailgun). Thanks Postmark Team <3 !

Max Vaesse

Max Vaesse

Owner at Premium ARK

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

Michael Trojanek

Michael Trojanek

via Twitter

We've architected our sending infrastructure to rely heavily on Postmark, and we couldn't be happier. They've been supportive at every step along the way, and have helped us to deliver (and report on) tremendous results for our clients.

Matt Goldman

Matt Goldman

CEO at Churn Buster

Had a horrific experience with SendGrid so i would avoid. We use Postmark and are very happy with it :D

Chris Manson

Chris Manson

via Twitter

We’re really happy we decided to use Postmark for ITV’s British Soap Awards. We only count votes from verified email addresses and Postmark’s excellent delivery has lead to our highest verification percentage ever. We'll definitely use Postmark again!

Owen Matthews

Owen Matthews

Creative Director at Ten4 Design

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

Yegor Zubarets

Yegor Zubarets

via Twitter

I finally moved from SendGrid to @postmarkapp for @MetricsWatch. So happy! Great support, awesome product, stellar delivery and speed.

Jean-Philippe Boily‏

Jean-Philippe Boily‏

via Twitter

Postmark every day. UX is great. Delivery is top-notch and super fast. I've also used Sparkpost and Mailgun and they just don't compare.

Pete Keen

Pete Keen

via Twitter

I am baffled that anyone would choose Sendgrid over Postmark. If they tried both, they probably wouldn’t. Delivery rates are just night and day honestly!

Casper Sørensen

Casper Sørensen

via Twitter