Email reputation

Check an email or domain

See whether an address is disposable, undeliverable, or blacklisted — with domain age and deliverability — from FormShield's live DNS, DNSBL, MX and RDAP checks.

Email reputation

guerrillamail.com

Suspicious 306ms

Domain

guerrillamail.com

Domain age

Unknown

Reputation signals

Disposable

Try a sample

mailinator.com Mailinator Disposable guerrillamail.com Guerrilla Mail Disposable gmail.com Gmail Clean notarealdomain-xyz999.com Dead domain No mail server

This is the same POST /v1/email/check endpoint your app can call — disposable, deliverability, blacklist and domain-age signals on every submission, cached for 30 days.

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