Utility
Email Validator
Verify an email address before you send: syntax check, live MX-record lookup, and disposable-domain detection. No email is sent and nothing is stored.
How it works
The validator runs three checks. First, the address is tested against the RFC-style syntax rules that mail servers actually enforce. Second, the domain is compared against a list of known disposable-email providers. Third, a live DNS lookup confirms the domain publishes MX records — without those, no mailbox at the domain can receive mail. A passing result means the domain can accept email; it does not guarantee the specific mailbox exists, which only an SMTP handshake at send time can confirm.