CSA STAR Registry

BounceZero is an AI-powered email validation and deliverability platform built for marketing teams, agencies, and SaaS companies that rely on clean email lists. Core Service: Multi-stage email validation pipeline combining syntax checking, DNS/MX verification, SMTP probing, and machine learning scoring to classify email addresses as valid, invalid, risky, or catch-all. Key Capabilities: - Real-time single email validation API - Bulk list processing (millions of addresses) - Deliverability analytics and sender reputation monitoring - Webhook integrations and CSV export - SMTP probe network across multiple IP ranges and geographies Infrastructure: Hosted exclusively in the European Union (OVH Roubaix, France). All customer data remains in the EU. Security & Compliance: - UK GDPR and EU GDPR compliant - BOUNCEZERO LTD — UK registered company (Company #17153835) - TLS 1.2+ encryption for all data in transit - Data encrypted at rest - Role-based access control and full audit logging Founded: 2025 | Headquarters: London, United Kingdom