Egress Protect vs StealthMail: Side-by-Side Comparison (2026)

Egress Protect: End-to-end email encryption with DLP and access controls for Microsoft 365. built by Egress. Core capabilities include End-to-end email encryption with 256-bit AES, Automatic and sender-initiated encryption based on policies, Granular access controls to restrict forwarding, printing, copying, and downloading..

StealthMail: Enterprise email security via encrypted stealth-links, bypassing SMTP vulnerabilities. built by StealthMail. Core capabilities include End-to-end email encryption using Stealth-Links instead of direct content transmission, User-owned encryption key management (ECC 512+ bit), Role-based access controls for managing user permissions..

Both serve the Email Encryption market but differ in approach, feature depth, and target audience.

Egress Protect differentiates with End-to-end email encryption with 256-bit AES, Automatic and sender-initiated encryption based on policies, Granular access controls to restrict forwarding, printing, copying, and downloading. StealthMail differentiates with End-to-end email encryption using Stealth-Links instead of direct content transmission, User-owned encryption key management (ECC 512+ bit), Role-based access controls for managing user permissions.

Egress Protect is developed by Egress. StealthMail is developed by StealthMail. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Egress Protect and StealthMail serve similar Email Encryption use cases: both are Email Encryption tools, both cover Encryption. Review the feature comparison above to determine which fits your requirements.