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Beyond Encryption Mailock for M365 is a commercial email encryption tool by Beyond Encryption. CloudMask Secure Gmail is a commercial email encryption tool by CloudMask. Compare features, ratings, integrations, and community reviews side by side to find the best email encryption fit for your security stack.
Based on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
SMB and mid-market teams standardized on Microsoft 365 should pick Beyond Encryption Mailock for M365 if message revocation is non-negotiable; the ability to recall emails even after a recipient opens them covers the mistake you'll inevitably make sending sensitive data to the wrong person. AES-256 encryption with SMS and Q&A recipient verification handles NIST PR.AA without requiring users to manage separate identity infrastructure. Skip this if your organization needs DLP that catches data before it leaves the network or if you're already enforcing encryption at the gateway level; Mailock layers on top of M365 rather than replacing email security controls.
Teams managing Gmail across startups and mid-market companies need CloudMask Secure Gmail if Gmail's native encryption doesn't satisfy your data residency or key control requirements; the tool keeps encryption keys entirely out of CloudMask's hands, which matters for regulated industries where Google's infrastructure alone won't pass audit. The user-controlled key model aligns with NIST CSF 2.0 Data Security principles by giving you genuine confidentiality control rather than relying on vendor promises. Skip this if your organization needs encryption across multiple email providers or requires formal key escrow for recovery scenarios; CloudMask is Gmail-only and doesn't solve for employees using Outlook or on-premises Exchange.
AES-256 encrypted email add-on for M365 with auth & revocation.
End-to-end Gmail encryption with user-controlled keys and trusted contacts.
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Common questions about comparing Beyond Encryption Mailock for M365 vs CloudMask Secure Gmail for your email encryption needs.
Beyond Encryption Mailock for M365: AES-256 encrypted email add-on for M365 with auth & revocation. built by Beyond Encryption. headquartered in United Kingdom. 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. headquartered in Canada. 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.
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