Beyond Encryption Mailock for Outlook vs StealthMail: 2026 Comparison

Beyond Encryption Mailock for Outlook: Outlook add-in for end-to-end email encryption with recipient auth & revoke. built by Beyond Encryption. headquartered in United Kingdom. Core capabilities include End-to-end AES-256 email and attachment encryption, Recipient authentication via SMS, Q&A, or Unipass ID, One-click secure email composition from the Outlook ribbon..

StealthMail: Enterprise email security via encrypted stealth-links, bypassing SMTP vulnerabilities. built by StealthMail. headquartered in United States. 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.