Basic email address checker
Check address format, common domain typos and optional domain mail records.
Use the tool
Format and typo checks stay in this tab. Optional DNS lookups send only the domain to Cloudflare's public resolver, which also sees your IP address. The full email address is never sent.
We count tool use, never inputs or results.
Enter an address to review its format and common domain typos.
Address format
Domain mail records
This basic check cannot confirm mailbox existence, catch-all behavior, consent or delivery. It sends no test email.
Put your prepared campaign to work.
Import your contacts, review personalized messages and manage follow-ups from your own Gmail accounts.