How to use Legit Email Checker
- Start by entering an email address or domain in Legit Email Checker.
- Run it, and Legit Email Checker issues the DNS lookups directly from your browser.
- Review the result, which Legit Email Checker fetches live from a public DNS resolver.
About this tool
Legit Email Checker runs in your browser with no backend of its own. Legit Email Checker validates an address syntax locally, then checks the domain MX, SPF and DMARC records over DNS-over-HTTPS.
Proving a specific mailbox exists requires sending mail, which a browser cannot do, so Legit Email Checker focuses on the DNS signals that genuinely can be checked. The MX, SPF and DMARC checks are DNS queries sent from your browser to a public resolver; this site has no backend and never sees them, and a connection is required.
Frequently asked questions
What does Legit Email Checker do?
Legit Email Checker validates the address format and checks the domain's MX, SPF and DMARC records via DNS from your browser.
Do I need an account for Legit Email Checker?
No — Legit Email Checker needs no account, sign-up or installation.
Where does Legit Email Checker run its checks?
Legit Email Checker runs DNS lookups (MX, SPF, DMARC) from your browser against a public DNS-over-HTTPS resolver. This site has no backend and never sees them; the public resolver does.
Can Legit Email Checker confirm a mailbox really exists?
Legit Email Checker checks address syntax and the domain's MX, SPF and DMARC via DNS-over-HTTPS; proving a live mailbox needs to send mail, which a browser cannot do.