running on your machineNothing is uploaded. Your list stays on this computer.
Emails to check
Drop a CSV or text file here, or click to pick one
Any file with addresses in it works. Columns you don't need are ignored.
Asking the mail server proves a mailbox exists without sending anything. Some networks block it, and then rows come back as "not sure" rather than a guess dressed up as a fact.
Rows
Email
Verdict
Why
Mail host
People to find
Drop a CSV here, or click to pick one
One per line as name,domain, or a CSV with name and domain columns. People at the same company share one crawl.
Free by default: the site crawl, the pattern engine and the mail-server check never cost anything. Paid providers only run if you set their API keys, and only on rows the free rungs missed.
Rows
Name
Company
Email
Verdict
Source
Pattern
Cost
Company lookup
Free facts from bytes the crawl already fetched: description, socials, mail provider, published team addresses, the email pattern this company uses.