Check Spam Email — Free Disposable & Spam Email Address Checker
Free spam-email checker powered by the Prosopo provider. Paste any email to see whether its domain (or its DNS redirect, CNAME or MX chain) is on our maintained disposable-email blocklist.
Is this email on the spam list?
Paste any email address below. We check its domain against the Prosopo spam-email-domain list, then follow any HTTP redirect, or failing that its CNAME or MX record, to catch domains that point at a listed disposable service.
Limited to 5 checks per browser session. For production use, see the spam-filter docs.
This runs the same domain check Procaptcha applies when a site sends the user's email with its verification request and has the spam-email filter turned on: a lookup against the disposable-domain list, an HTTPS request to the domain to follow any redirect, then a CNAME or MX lookup to expose aliased throwaway services. Read more about the technique in why bots fill out forms.
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