Mailtrap

Test email safely in sandboxes and send transactional messages in production.

testingemail

Websitemailtrap.io

CategoryEmail & forms

PricingFreemium

Card requiredNo

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ABOUT

What is Mailtrap?

Mailtrap is a comprehensive email delivery platform that started as a testing tool and expanded into transactional email sending. Its Email Testing feature captures outgoing emails from development environments so developers can inspect and debug them before going live. The Email Sending (formerly Mailtrap API) service provides SMTP and API-based transactional sending with analytics.

BEFORE YOU SIGN UP

What you should know

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Excellent email testing sandboxCaptures all emails from development and staging environments, letting you inspect HTML, plain text, headers and spam score before sending real messages.

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Clean, modern interfaceThe dashboard is well-organized with clear visual previews of captured emails and intuitive navigation for both testing and sending.

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Email Sending is relatively newThe sending service launched more recently than competitors, so deliverability track record and advanced features are still maturing.

Low email log retentionFree tier only keeps logs for 3 days, making debugging of delayed issues harder without upgrading to a paid plan.

COMMUNITY

From the forums

On r/webdev and r/rails, Mailtrap is widely loved for email testing, with many developers considering it an essential part of their email development workflow. The dashboard UI is praised for being clean and intuitive. The newer Email Sending service is still building trust; some users report lower deliverability compared to SendGrid or Resend.

— Community sentiment · Reddit

💬Discuss on Reddit ↗

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ABOUT US

Honest, independent, no fluff.

No paid placements. Just a clear look at what this does, what it costs, and what to know before you commit.

FAQ

Questions, answered.

What is the difference between Mailtrap Email Testing and Email Sending?＋

Email Testing captures and inspects emails in a sandbox environment. Email Sending actually delivers transactional emails to real recipients via SMTP or API.

Can I use Mailtrap for production email sending?＋

Yes, Mailtrap offers an Email Sending API and SMTP for production transactional emails, starting at 4,000 emails/month on the free plan.