Email API that does the job

Our Email API offers an email infrastructure with high deliverability rates by design. Reach recipients’ inboxes in seconds, and monitor email performance with ease.

Why choose Mailtrap Email API

≈ 1 sec email delivery time

High delivery rates with minimum time to reach recipients’ inboxes. Reliable uptime and streamlined API calls for email sending.

Email API and SMTP service

SMTP for quick and easy setup to start sending in seconds, and Email API integrations for greater email sending flexibility.

In-depth email analytics

Helicopter-view dashboards, drill-down reports, stats for separate email service providers including Gmail, Google Workspace, O365, and Outlook.

Up to 60 days of email logs

The extended historical email data + Email body preview. View email content after it was sent. Plain, Raw, HTML, Spam Check.

Deliverability alerts

Weekly reports every Monday, and timely critical alerts if your deliverability metrics suddenly drop. Catch and fix unexpected sending issues at the early stages.

Email authentication

All the necessary DNS records (SPF, DKIM, DMARC) and their validation is automatic with Mailtrap email sending API. Plus, we rotate your DKIM keys quarterly.

Trusted by 150,000+ monthly active users

Sending emails is easy with Mailtrap Email API

  • Set up and verify sending domain

    Create an account with Mailtrap, go to Sending Domains, add your domain, grab DNS records, and do the verification.

  • Integrate with your application

    Use SMTP service for quick and easy integration or RESTful API for improved email sending flexibility.

  • Send emails

    Start sending emails to your customers. Use Mailtrap Email API to the full extent – reach recipients inboxes just in time.

From our #BestClientsEver

Joshua Anderton

Just signed up for @Mailtrap and I’m loving it. So easy to set up. Provides so much peace of mind. Ahh just love it.
7:38 PM – Jan 13, 2021


After all these years of web development, how have I only JUST started using @Mailtrap. I had heard about it, but never got round to using it. An awesome way of testing emails.
1:25 PM – Nov 07, 2020

Alessandro Rodi

I love @Mailtrap. It removes all the asshole of configuring email servers in test environments. Great service! Is totally worth your money!
1:15 PM – Oct 20, 2020

Mr. Glass

Shout out to @Mailtrap, hands down the best way to handle mail sending in local/test environments.
11:43 PM – May 21, 2020

Rado Georgiev 

One thing we started using recently is @Mailtrap for our dev & staging environments. We were previously either turning email sending entirely off for staging or running SES + whitelist. Turns out, having a fake SMTP mailbox is great and you can test better with it.
1:32 PM – Jan 06, 2021

Doug Black Jr

Can we all agree @Mailtrap is a gift to developers everywhere? It just works SO easily out of the box!!!!
9:45 PM – Aug 11, 2020

Get more out of Mailtrap Email Delivery Platform

Email Sending

Send transactional emails with ease. Get more control over your email infrastructure performance and deliverability rates.

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Email Testing

Capture SMTP traffic from staging and dev environments. Analyze email content for spam score and validate HTML/CSS.

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SMTP Service

Send your application emails. Multiple languages for quick and easy integration.

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