BounceBan

BounceBan tackles the email addresses that break most verification tools: catch-all domains and addresses hidden behind Secure Email Gateways that block standard checks. The free tier is genuinely useful rather than a teaser: unlimited single email verifications with no account signup required. You can test whether an address will bounce before you send, which matters when you're cleaning prospect lists or validating form submissions one at a time. The catch is scale and integration. There's limited information about bulk verification features or what high-volume use costs, and it won't slot into most email platforms or CRMs without manual work. It's for anyone checking prospect emails individually before outreach, or testing whether an address from a catch-all domain is real before hitting send. If you're running large campaigns and need automated platform integration, look elsewhere.