Instant inboxes for developer email testing, verification workflows, and real-time event handling. SMTP sandbox, REST API, and webhooks included.
Capture test emails in an isolated SMTP sandbox. Inspect HTML, headers, attachments, plus SPF/DKIM/DMARC.
Use your own domain (@example.com) with 50MB per mailbox, 100,000 ops monthly, and priority support.
Automate email testing with REST API and real-time webhooks. Official SDKs for Node.js, Python, and Go.
Stable under burst load, high concurrency with no dropped connections.
Inbound emails reach your inbox within 1 second of arrival.
Asynchronous pipelines, decoupled components, horizontal scaling.
Highly-available storage with full 7-day retrieval of every email.