Free Disposable Email Checker, Detect Temporary Emails | Mailthentic
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Disposable Email Checker

Find out if an email uses a disposable or temporary domain, checked against 800+ known throwaway providers.

What is a disposable email?

A disposable or temporary email is a throwaway address from services like Mailinator or Guerrilla Mail. People use them to dodge signups, so they inflate your list, never convert, and often bounce or go dead within hours.

To block disposable signups in real time and catch invalid addresses too, run a full check with the free email checker, or read how to detect disposable emails.

Block fake signups

Verify addresses at signup with the API. Start with 1,000 free credits.