Free Temporary Email for API & Integration Testing

When your API sends email — through SendGrid, Mailgun, SES, or your own SMTP — the send call returning 200 tells you almost nothing. The provider accepted the message; whether it was actually delivered, with the right content, to the right recipient, is a separate question that needs a real receiving inbox to answer. Disposable addresses close that loop: your integration test hits the endpoint, the email goes out through the real provider, and the test polls a tempy.email mailbox to assert on the delivered message itself — subject, body, personalization tokens, the works — with no risk of test traffic reaching a real user.

tempy.email adds one capability that fits API testing especially well: webhooks. When you create a mailbox through the developer API you can attach a webhook URL, and incoming mail is pushed to your endpoint as it arrives — letting you assert on email events the same way you assert on payment or messaging webhooks, without polling. Teams use this to verify email queue ordering, test bounce and retry handling against an address that actually accepts mail, validate email parsing logic against real MIME payloads, and confirm that third-party workflow tools like Zapier fire their email steps correctly.