Free Disposable Email Checker & Detector
Temporary and burner email addresses provided by disposable inbox services look like legitimate mailboxes on signup, but quickly turn into permanent hard bounces and spam traps. Testing recipient addresses prevents reputation downgrades and preserves your sender score.
Under active development: The live DNS engine for Disposable email checker is currently being built. The worked example below shows exactly what it evaluates.
Preview diagnosis — tester@tempmail.com
Sample demonstration- FixDisposable status
Burner / Disposable providerIdentified on active disposable domain registers (TempMail / 10MinuteMail network).
- PassMX records
mx1.tempmail.com (Priority 10)Mail exchange servers exist, but inbox is designed to self-destruct.
- PassRFC 5322 syntax
Valid address format - FixDeliverability risk
Critical spam trap hazardSending receipts or password resets to this domain will bounce after 10–60 minutes.
Confirmed disposable email address. Dispatches to this address will bounce and inflate your spam complaint ratio.
SadaSend runs these checks continuously on your sending domains, and refuses to send until they pass — so mail Gmail would reject never leaves.
Start freeWhat this checks
- The domain is cross-referenced against 3,500+ active disposable mail providers
- Routable MX records exist and are verified for live mail acceptance
- The address syntax conforms strictly to RFC 5322 address formatting
- Mailbox provider reputation is evaluated against known high-risk free hosts
Questions
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