Email Validator

Validate any email address: syntax, MX records, SMTP, disposable detection, and free provider check.

Email Address

Examples

Signup forms: validate user-provided emails before sending welcome emails.
Cold outreach lists: filter obvious typos and disposable addresses to reduce bounce rates.
Company emails: check if a domain has MX records and whether SMTP is reachable.

Tip: “SMTP reachable” doesn’t always mean deliverable—some providers block verification attempts or accept all emails to prevent enumeration.

FAQ

Does “Valid” guarantee delivery?
No. It means checks passed (syntax/MX/SMTP heuristics). Delivery can still fail due to inbox rules, full mailboxes, or anti-spam policies.

Why is a real email marked invalid?
Some domains have unusual configurations, block verification, or use catch-all settings that confuse automated checks.

Do you store email addresses?
The tool calls an API to perform validation. Avoid checking sensitive personal emails unless you’re comfortable with that processing.

Validation caveat

Email validation can reduce obvious typos and disposable addresses, but it can’t guarantee inbox delivery. Always handle bounces and confirmations (double opt-in) in your mailing workflow.