Email Testing

Capture SMTP traffic from staging and dev environments.

Automate test flows and scenarios with flexible API.

Analyze email content for spam score and validate HTML/CSS.

No credit card required.

Trusted by 150,000+ monthly active users

Email testing challenges that Mailtrap solves

Configure your testing environment in 5 minutes

Each account comes with an individual testing environment. Integrate it with your app in just a few clicks.

Keep all testing data organized in one place

Create individual inboxes for different environments or review servers and group them into relevant projects.

Quickly integrate with Testing API

Get started quickly with our well-documented API and configure automated testing with unlimited API calls.

Dig into both the content and source of your emails

View messages, check spam scores, validate headers, analyze the HTML support across email clients, and more.

Easily share test emails with your team

Manage access to your inboxes for colleagues or clients. Send selected test emails to whitelisted real recipients.

Test your email sending service

Send emails to Mailtrap directly from your CRM or email sending service. Simulate sending to multiple recipients.

Setup takes less than 5 minutes

Mailtrap is compatible with any app or framework that supports SMTP

Select your integration from 20+ code samples or copy SMTP credentials
Paste the configuration to your project
Run your email sending code
Instantly receive a message in your Mailtrap inbox

How different teams use Mailtrap

Developers

Experiment with the email sending functionality
Cover code with tests to run automated checks via Testing API
Verify different email aspects, debug sending script and HTML template

QAs

Run safe email tests in staging and/or testing environment
Integrate Mailtrap with automated testing tools
Compare revised emails with their previous versions

Marketers and managers

Smoothly collaborate with development and QA teams
View test emails in shared inboxes or forward to real recipients
Send emails to Testing inboxes from CRMs and common sending tools

From our #BestClientEver

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

Frequently Asked Questions

Can Mailtrap Email Testing send emails to recipients’ inboxes?

Mailtrap Email Testing is not designed to deliver emails to real addresses. However, you can forward some messages to your colleagues, customers, or your own inboxes for testing purposes.

How can I preview my email in different email clients?

Mailtrap’s HTML Check analyzes your template for support in popular email clients and explains how to fix errors right away. This is more efficient than manual comparison of previews from email clients, but you still can forward your test emails to real recipients and open them in specific email clients.

Can I send a test email to Mailtrap from my Gmail?

Yes, you can! On Business, Premium, and Enterprise plans, there is a separate email address available for each of your inboxes. With it, you can send messages from any CRM, email sending app or client, such as Gmail, Hubspot, Sendgrid, etc.

How much does Mailtrap cost?

Mailtrap features a forever free plan that offers the basic functionality for personal use. Paid plans start from $14.99 per month, and are suitable for companies of different sizes. View the Mailtrap pricing for more details.