Free email tools.
Quick checks you can run right now, without an account. They use the same live checks as the BounceOwl app.
Free email checker
Type an address and BounceOwl asks its mail server whether the mailbox exists. No email is sent and you don't need an account.
10 free checks a day, no signup
Open the email checkerFree catch-all checker
Some domains accept mail for every address, real or not. Enter a domain and we'll test its mail server with an address that can't exist.
10 free domain checks a day, no signup
Open the catch-all checkerFree MX lookup
Enter a domain to see its MX records in priority order, and which email provider or security gateway runs each server.
Free, no signup
Open the MX lookup
Have a whole list?
Upload a CSV or Excel file in the app. New accounts get 100 free credits.
Check your next list before it costs you a domain.
100 free credits with Google sign-in. Pay as you go after that, and credits never expire.