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InboxFound answers two questions that most tools collapse into one green tick:
  1. Does this mailbox accept mail? Asked of the receiving mail host, read conservatively.
  2. Does it belong to the person you asked about? Judged from evidence, never assumed.
Every result reports those separately, states the mail provider, and flags role, free and disposable addresses. You are charged only for definite answers.

Quickstart

Create a key, submit a verification, read the result. Five minutes.

Jobs and polling

Submit, poll, read. Every endpoint has a live playground in the API reference tab.

Results

What each status word means and which ones are charged.

Billing

Reservations, rates and what is never charged.

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Two operations

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How work runs

Every submission is asynchronous. You get a job back at once and poll it until execution_state is complete or incomplete. Mail hosts do not answer instantly, so we do not pretend to; verifications usually settle in seconds, finds in under a minute. The dashboard at inboxfound.com/app runs the same jobs and shows the same fields, so you can try a lookup by hand before writing code.