How does Mailtrap capture emails?

Configure your staging SMTP to point at Mailtrap. All outgoing emails land in the Mailtrap inbox instead of real recipients.

Does Mailtrap check spam scores?

Yes. SpamAssassin analysis shows your spam score and flags potential deliverability issues.

Can I preview email rendering?

Yes. Preview how emails look across different email clients without sending test emails to real accounts.

Does Mailtrap send production emails?

Yes. Mailtrap Email Sending provides a production API alongside the testing sandbox.

Does Mailtrap support teams?

Yes. Shared inboxes and team management on business plans.

Can I use Mailtrap with any language?

Yes. Standard SMTP works with any language. REST API and SDKs also available.

Does Mailtrap validate links?

Yes. Automatic link checking identifies broken URLs in your email content.

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Mailtrap — Test Emails Before They Reach Real Inboxes

Mailtrap is an email testing platform for developers that captures outgoing emails in a sandbox so you can inspect, debug, and validate them before sending to real users. No more accidentally emailing production customers from your staging environment.

The Staging Email Problem

You are testing a signup flow in staging. You click "Register" and a welcome email fires — to the real email address in your test data. The customer gets a confusing email from your staging server. Mailtrap prevents this by capturing all outgoing emails in a safe sandbox.

How It Works

Point your staging SMTP configuration at Mailtrap. Every email your app sends lands in the Mailtrap inbox instead of real inboxes. Inspect HTML rendering, check spam scores, validate links, and verify dynamic content — all before going to production.

Email Testing Features

HTML/CSS rendering preview across email clients. Spam analysis with SpamAssassin scoring. Link validation checks for broken URLs. Header inspection for debugging deliverability. Raw source view for technical troubleshooting.

Email Sending

Mailtrap also provides a production email sending API alongside the testing sandbox. Test in Mailtrap sandbox, then send through Mailtrap production API with deliverability monitoring.

Mailtrap vs Mailhog

Mailhog is a free, self-hosted alternative. Mailtrap is managed with better UI, spam scoring, and email client rendering previews. Mailhog for quick local testing. Mailtrap for team-wide email testing workflows.

Getting Started

Sign up through SaaSOffers for a free plan
Get your Mailtrap SMTP credentials
Configure your staging app to use Mailtrap SMTP
All outgoing emails land safely in Mailtrap

Pricing

Free plan with 100 test emails per month. Individual at $15/month with 500 test emails. Business at $65/month with 10,000 test emails and team features.