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Free Developer Tool • Live MX Lookup

Disposable Email Domain Checker

Verify whether an email address or domain belongs to a temporary or disposable inbox provider. Inspects active DNS MX records, mail server routing, and disposable domain lists.

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What Is a Disposable Email Domain?

Disposable email domains provide short-lived, receive-only inboxes used for newsletter isolation, software QA testing, and receiving one-time verification emails without exposing a primary personal or work inbox.

For Developers & SaaS Teams

Query our JSON endpoint /api/tools/domain-check?domain=example.com to validate DNS MX routing and classify signup domains in your registration forms. See the Developer API docs.

For Everyday Inbox Privacy

Want to keep promotional spam out of your main inbox? Generate a free temporary email address on Email Generator or explore our privacy guides.