"Hunter is a cloud-based solution that helps businesses find and verify professional email addresses from domains
companies or a specific professional on the web
and much more. A free cold email platform is also included to send email campaigns directly from Hunter. Hunter makes it incredibly easy for sales
recruiters and marketers to reach out to other professionals with simple but powerful tools. Hunter crawls the web and indexes publicly available professional email addresses. The data is easily accessible via a simple user interface to find the right person in a company or find how to contact already identified professionals."