Email Validator
Syntax, live MX/DNS, disposable & role checks.
This free email validator goes beyond a format check. For each address it verifies the syntax against RFC-style rules, then looks up the domain's live MX and DNS records to confirm the domain is actually configured to receive mail. It flags disposable(throwaway) domains, role-based mailboxes like info@ or admin@, identifies the mail provider, and suggests fixes for common typos such as gmial.com. Paste a whole list to validate in bulk.
MX and DNS lookups run over secure DNS-over-HTTPS. A full SMTP mailbox handshake can't be performed from a browser for security reasons, so a live MX record is the strongest deliverability signal available client-side: it confirms the domain accepts mail.
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