Simple email testing

Get unlimited email addresses and mailboxes for automating end-to-end tests with our simple APIs

• Test new user signups

  Email verifications, passwordless signins, etc.

• Test transactional and drip emails

  Are they triggering when expected?

• Test delivery and spam scores

  Are emails reaching the inbox?

We receive, parse, spam-test, and index your emails for easy retrieval via API

Never spam real customers by mistake - send your test emails to {namespace}.{tag}@inbox.testmail.app.

Signup to get your {namespace}. The {tag} can be anything: each tag makes a separate email, so you can create unlimited real email addresses and mailboxes on the fly by simply changing the tag!

Use our simple JSON API or our powerful GraphQL API to query your emails (see docs)

Use any HTTP or GraphQL client of your choice in any language or environment including CI/CD pipelines.

Take it further with awesome features like advanced search with wildcard match, "live" queries (waiting for new emails), sorting, pagination, attachments, SpamAssassin reports, and more.

Collaboration is easy: invite your team members via email and share anything

Together you can create separate namespaces (and mailboxes) for each project, securely provision and retrieve API keys, share test emails, monitor usage, and manage team membership.

Invite as many collaborators as you need on all plans at no extra cost. Or manage multiple separate teams with the enterprise plan.

Comprehensive documentation and world class support by real engineers (no bots)

Whatever you need, we have it: quickstart, API reference, interactive GraphQL Playground for testing queries, examples, and more.

Questions? We're always happy to help. Most priority support requests are answered within minutes by a real engineer (not a bot) - we like talking to humans :)

Secure and reliable with highly available APIs backed by our 99.99% uptime SLA (see plans)

Secure by design: HTTPS/TLS is forced on all traffic, everything is encrypted in-transit and at-rest, and logins are passwordless.

Our APIs are distributed across multiple data centers and actively monitored around-the-clock. We are fully transparent about uptime: see our public status page with real-time uptime checks.