How to use Free Bulk Email Verifier
- Start by entering an email address or domain in Free Bulk Email Verifier.
- Press the button and Free Bulk Email Verifier sends the DNS lookups from your browser.
- Read the response Free Bulk Email Verifier shows below — it comes from a public DNS resolver, not from this site.
About this tool
There is no server of ours behind Free Bulk Email Verifier. Free Bulk Email Verifier 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 Free Bulk Email Verifier 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 Free Bulk Email Verifier do?
Free Bulk Email Verifier validates the address format and checks the domain's MX, SPF and DMARC records via DNS from your browser.
Is Free Bulk Email Verifier free to use?
Yes — Free Bulk Email Verifier is completely free, with no usage limits.
Where does Free Bulk Email Verifier run its checks?
Free Bulk 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 Free Bulk Email Verifier confirm a mailbox really exists?
Free Bulk 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.