Free Email Verifier
Check if any email address is valid, deliverable, and safe to send to. Real SMTP verification included.
What We Check
Format
Validates the email format against RFC 5322. Catches typos and malformed addresses before SMTP check.
MX Records
Confirms the domain has valid mail exchange records — a prerequisite for any email to be delivered.
SMTP Verification
Connects to the mail server and performs a handshake to confirm the mailbox exists without sending an actual email.
Catch-all Detection
Identifies catch-all domains and provides a probability score (0–100) for the specific address being valid.
Disposable Email
Checks against 2,000+ known disposable email providers (Mailinator, Guerrilla Mail, etc.).
Role-based Detection
Flags role-based addresses (info@, support@, sales@) that are less likely to be individual inboxes.
Related Tools & Resources
Last updated: March 2026
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