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Security

Disposable Email Checker

A disposable email checker tells you whether an address belongs to a known throwaway provider. Comparing the domain against a curated list of temporary mail services flags signups likely to be abandoned, which is useful for trial abuse and for keeping a mailing list clean.

Last updated · Free, no signup

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What does a disposable-email checker detect?

A disposable-email checker identifies addresses whose domain belongs to a known temporary-mail provider. That signal can help investigate trial abuse, low-quality signups, and addresses likely to expire, but it does not determine whether a mailbox currently exists or whether the person behind it is legitimate.

This page lowercases and compares the exact domain against a local curated list of roughly 35 providers, so the address is never transmitted. Subdomains and newly launched services can be missed, and legitimate privacy relay addresses may be mistaken for throwaway mail if policy treats every masked address alike.