Cold email
Your prospect list is the business. Don't hand it over.
The list you spent months building is your edge. Uploading it to a cloud validator means a third party now holds your entire pipeline. BounceBuster cleans it on your machine, so the only copy that exists is yours.
Your edge stays on your machine
No upload means no copy of your targeting sitting on someone else's servers, retained for weeks.
No rate limits between you and a send
Validate thousands a second on your own cores. No API throttling slowing down a launch.
Format, DNS & MX, all local
Catch the dead domains and undeliverable mailboxes that wreck cold-send reputation, before they bounce.
$19 once, any list size
Scale your outreach without a validation bill that scales with it. One payment, unlimited lists.
Clean prospect lists without exposing them.
Download BounceBuster and clean up to 600 emails free. No account, no data leaves your machine.
Need unlimited? Get Professional for $19 →