How to use Bulk Email Checker Free
- Enter an email address or domain into Bulk Email Checker Free.
- Press the button and Bulk Email Checker Free sends the DNS lookups from your browser.
- Review the result, which Bulk Email Checker Free fetches live from a public DNS resolver.
About this tool
Bulk Email Checker Free runs in your browser with no backend of its own. Bulk Email Checker Free 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
How do I use Bulk Email Checker Free?
Bulk Email Checker Free 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 Bulk Email Checker Free?
No — Bulk Email Checker Free needs no account, sign-up or installation.
Where does Bulk Email Checker Free run its checks?
Bulk Email Checker Free 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 Bulk Email Checker Free confirm a mailbox really exists?
Bulk Email Checker Free 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.