Highly customizable Email API

Flexible API for high-volume sending.
Easy to scale. SDKs for smooth integration.
24/7 tech support.

Why choose Mailtrap Email API

SDKs for major programming languages

Official SDKs for PHP, Python, Ruby, and more. Integrate Email API quickly into your application and save coding time and effort.

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 monthly.

Up to 30 days of email logs

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

Email templates

Redy-made email templates to create designs from scratch. Use drag-and-drop and HTML-editor to build functional emails without coding.

In-depth email analytics

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

Bulk email

RESTful API for mass email sending. Reliable bulk email stream for better scalability, and email delivery monitoring.

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

Andrey Azimov

@AndreyAzimov

I switched from Postmark to @Mailtrap for sending ~1M emails per month for my SaaS. It’s cheaper and and has a better stats design. Also, their team is very nice and helped me to improve open and bounce rates.

3:12 PM – 10 Oct 2024

Tom Ravn

@TomR4vn

I am testing Mailtrap last weeks. You can send emails from your domain for free. They allow 1000 mails/month. It is quite ok. It can be used with good old SMTP connection or via API. https://mailtrap.io/

12:49 PM – 20 Feb 2023

Joshua Lim S. Ming

@limshengming

I’ve dreaded setting up VPS’ to work with an external SMTP but @Mailtrap made things so easy! They’ve got the code and everything that you can copy and paste!

12:35 PM – 2 Dec 2022

Tr1p

@tr1pwyr

Y’all know what’s really good? https://mailtrap.io/ @Mailtrap

3:44 PM – 16 May 2023

Joshua Anderton

@joshuaanderton

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 – 13 Jan 2021

DeveloperMitch

@mitchellfinlay

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 – 7 Nov 2020

Alessandro Rodi

@coorasse

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 – 20 Oct 2020

Mr. Glass

@MisterGlass

Shout out to @Mailtrap, hands down the best way to handle mail sending in local/test environments.

11:43 PM – 21 May 2020

Rado Georgiev

@Rado_g

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 – 6 Jan 2021

Doug Black Jr

@dougblackjr

Can we all agree @Mailtrap is a gift to developers everywhere? It just works SO easily out of the box!!!!

9:45 PM – 11 Aug 2020

Get more out of Mailtrap Email Delivery Platform

Spam Checker

Confirm your SpamAssassin score is minimized. Make sure your IP is not blacklisted, and your email content is spam-free.

Email Testing

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

SMTP Service

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