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Industry Leadership
Strategic Initiatives
CSA's strategic programs driving innovation in AI, cloud, and Zero Trust.
A public-interest 501(c)(3) dedicated to secure and trustworthy AI.

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BounceZero Email Validation API

BounceZero Email Validation API

BounceZero Email Validation API

BounceZero Email Validation API is a SaaS platform that validates email addresses through a multi-stage verification pipeline, helping businesses reduce bounce rates, protect sender reputation, and improve email deliverability.

Service Features: - Real-time email validation via REST API - Bulk list processing with async job queue - Syntax, DNS, MX, and SMTP verification - Machine learning scoring and classification - Catch-all domain detection - Disposable and role-based address detection - Webhook notifications and CSV export

Deployment Model: Multi-tenant SaaS

Data Residency: European Union (OVH Roubaix, France)

API Access: https://app.bouncezero.io/api/v1/

Security Controls: - TLS 1.2+ for all API communication - API key authentication with SHA-256 hashing - Rate limiting and abuse prevention - SSRF-protected webhook delivery - Full audit logging

Target Customers: Marketing agencies, SaaS companies, e-commerce platforms, and any organization managing large email lists.

Offers an industry-accepted way to document what security controls exist in IaaS, PaaS, and SaaS services. It provides a set of Yes/No/NA questions and space to justify the response a cloud consumer and cloud auditor may wish to ask of a cloud provider to ascertain their compliance to the Cloud Controls Matrix (CCM).
Information about BounceZero Email Validation API
Listed Since: 04/20/2026

STAR Level 1

Cloud Controls Matrix

CAIQ Self-assessment v4.0.3

Offers an industry-accepted way to document what security controls exist in IaaS, PaaS, and SaaS services. It provides a set of Yes/No/NA questions and space to justify the response a cloud consumer and cloud auditor may wish to ask of a cloud provider to ascertain their compliance to the Cloud Controls Matrix (CCM).

Created or renewed 3 months ago, on April 20, 2026.