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Cover your code with tests and validate if emails are sent. Test multiple variables at a time.
Automate your email testing with Testing API
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Email Testing API has everything you need to test your emails
Verify hundreds of variables, at once
Complex workflows call for comprehensive solutions. Test any number of unique emails in a matter of seconds.
Inspect unmodified emails
Raw headers are visible for each email you send. Validate each and easily catch any inconsistencies.
Quickly integrate with your CI
Our API works seamlessly with any WebCI and features an extensive documentation. There’s hardly any learning curve.
Run automated, daily checks
Save time by letting API handle the dull checks of your emails. Be the first to know if any issues occur.
Test on any environment, including production
With features such as bcc tracking or individual email per sandbox, you can monitor live emails with ease.
Dig into the contents of your emails
Verifying if emails are sent is just the first step. Check their spam score, validate the headers, HTML, and a lot more.
Trusted by 150,000+ monthly active users
How devs use Testing API
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Integrate your app with Mailtrap SMTP and API
Copy the credentials or grab the ready code available in the sandbox settings. Send the first email to fake SMTP server.
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Run a check in your CI
Use API to validate if an email was indeed sent. Check automatically any other details – headers, attachments, links, etc.
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Expand your tests
Set up recurring checks and use API to access other Testing features – spam score, HTML check, bcc tracking, and more.
Email testing toolset available with sandbox
HTML Checker
Validate the HTML/CSS rules included in your emails template. Gauge the support across popular clients – on web, mobile, and desktop.
Device Previews
See how your email renders on real devices and clients. Add a visual check to the headers, HTML, and spam score your tests already cover.
Fake SMTP
Test email sending from your project and view each email sent in your Testing sandbox. Never send a thing to recipients’ inboxes.
