Free SMTP Relay Server

Quick and easy email delivery

Setting up your web application to send emails using SMTP couldn’t be easier. It’s as simple as copying some credentials into a config file and you’re ready to send. 100 emails/month free!

Get started—it’s free No credit card required

Paddle
Indie Hackers
Faire.com
IKEA
litmus
desk
minecraft
livestream
UNICEF
Asana
Moz
Code Climate
LiveChat
1Password
Wistia
Betterment
Webflow
InVision

Say goodbye to email deliverability issues

People always say “don’t set it and forget it” but we actually strive to help you do just that. Once you integrate with Postmark, you can count on us to get your emails delivered fast and reliably—so you never have to worry about email delivery issues again.

Why choose Postmark?

Stellar deliverability

We believe that every customer deserves great delivery. It’s just part of the deal when you use Postmark.

Actionable email insights

Whether it’s measuring email opens and clicks or gathering delivery insights, Postmark’s real-time analytics have got you covered.

Top-notch support as a standard

You will never be charged extra for great support. We’re always here to help whether it’s through email, live-chat, or a 1-on-1 call.

Globally distributed SMTP service

We maintain endpoints in several AWS Regions around the world. We route to the closest endpoints to your servers for the fastest response times possible, resulting in very low latency.

Secure and GDPR friendly

We value your trust and work hard to protect your information—and that of your customers. Postmark is GDPR compliant.

Email authentication made easy

We guide you through setting up DMARC and SPF to help protect your domain from spoofing.

Developer friendly SMTP documentation

Postmark’s clear and concise documentation makes it easy to start sending using SMTP. We cover advanced features like tags and custom metadata, as well as common pitfalls so you can troubleshoot any issues..