How to use Reoon Email Verifier
- Give Reoon Email Verifier an email address or domain to work with.
- Press the button and Reoon Email Verifier sends the DNS lookups from your browser.
- See the response from a public DNS resolver; Reoon Email Verifier only displays what comes back.
About this tool
There is no server of ours behind Reoon Email Verifier. Reoon Email Verifier inspects the DNS-level deliverability signals for a domain directly from your browser.
The MX, SPF and DMARC lookups are real DNS-over-HTTPS queries, not guesses. 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 Reoon Email Verifier do?
Reoon Email Verifier validates the address format and checks the domain's MX, SPF and DMARC records via DNS from your browser.
Does Reoon Email Verifier cost anything?
No — Reoon Email Verifier is completely free, with no sign-up and no hidden limits.
Where does Reoon Email Verifier run its checks?
Reoon Email Verifier 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 Reoon Email Verifier confirm a mailbox really exists?
Reoon Email Verifier 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.