Why we built Sendtrap.
A test welcome email went out to thousands of real users. We wanted a safe place to send email during development — somewhere to inspect exactly what our apps produce, with nothing ever leaving the building.
A complete inbox for every team.
Sendtrap is a multi-tenant email sandbox. Projects, inboxes, credentials, inspection, a REST API and webhooks — the full toolkit a development team needs to test email confidently across every environment they ship to.
We're in active development. Features land regularly. Feedback shapes the roadmap.
Try it freeSafety first
Captured mail never reaches a real recipient. Every inbox is a dead-end by design — test any flow without consequence.
Zero ceremony
Standard SMTP. No SDKs to install, no webhook scaffolding to write. If your framework sends email, it already works.
Honest tooling
We show you exactly what your app sends — no filtering, no reformatting. What you see is what your recipients would have received.
Built to last
Open standards and a stable REST API mean you can integrate Sendtrap once and rely on it across every project you ship.
Start capturing email today.
Free to start. No credit card required.
Create your inbox