Proofy is a cloud-based platform that helps businesses authenticate email addresses through various tools such as syntax verification, domain validation and more. It allows professionals to upload email lists in CSV or TXT format and verify recipients' emails via simple mail transfer protocol (SMTP) checks. The platform also offers a dashboard for generating reports and analyzing grey listed domains or delivery rates via graphs. Proofy helps users store critical files in compliance with GDPR regulations and comes with an API for businesses to integrate with other applications.