Beyond Encryption Mailock for M365 vs CloudMask Secure Gmail: 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)..

CloudMask Secure Gmail: End-to-end Gmail encryption with user-controlled keys and trusted contacts. built by CloudMask. Core capabilities include One-click end-to-end encryption of Gmail subject and body, Automatic encryption of email attachments including file names, User-controlled encryption keys (zero-knowledge to CloudMask)..

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). CloudMask Secure Gmail differentiates with One-click end-to-end encryption of Gmail subject and body, Automatic encryption of email attachments including file names, User-controlled encryption keys (zero-knowledge to CloudMask).

Beyond Encryption Mailock for M365 is developed by Beyond Encryption. CloudMask Secure Gmail is developed by CloudMask. 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). CloudMask Secure Gmail integrates with Gmail. Check integration compatibility with your existing security stack before deciding.

Beyond Encryption Mailock for M365 and CloudMask Secure Gmail 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.