Beyond Encryption Mailock for M365 vs PreVeil Admin Features: Side-by-Side Comparison (2026)

Beyond Encryption Mailock for M365: AES-256 encrypted email add-on for M365 with auth & revocation. built by Beyond Encryption. Core capabilities include AES-256 end-to-end email encryption, Recipient identity verification via SMS, Q&A, or Unipass ID, Message revocation after send (including post-open)..

PreVeil Admin Features: Enterprise admin module for encrypted email & file sharing with E-discovery controls. built by PreVeil. Core capabilities include User and group management (add, remove, view), Device management with authorized device list and lock capability, E-discovery with Approval Groups™ for multi-party admin authorization..

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

Beyond Encryption Mailock for M365 differentiates with AES-256 end-to-end email encryption, Recipient identity verification via SMS, Q&A, or Unipass ID, Message revocation after send (including post-open). PreVeil Admin Features differentiates with User and group management (add, remove, view), Device management with authorized device list and lock capability, E-discovery with Approval Groups™ for multi-party admin authorization.

Beyond Encryption Mailock for M365 is developed by Beyond Encryption. PreVeil Admin Features is developed by PreVeil. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Beyond Encryption Mailock for M365 integrates with Microsoft 365, Microsoft Outlook, Exchange Online, Unipass ID, CRM (generic). PreVeil Admin Features integrates with Microsoft Outlook, AWS GovCloud, SIEM (third-party, via log export). Check integration compatibility with your existing security stack before deciding.

Beyond Encryption Mailock for M365 and PreVeil Admin Features 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.