Beyond Encryption Mailock for M365 vs FTAPI SecuMails: 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)..

FTAPI SecuMails: Encrypted email solution for GDPR-compliant sending via Outlook or browser. built by FTAPI. Core capabilities include Encrypted email sending and receiving via Outlook or web browser, S/MIME integration with automatic encryption method selection, No file size limits for email attachments..

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). FTAPI SecuMails differentiates with Encrypted email sending and receiving via Outlook or web browser, S/MIME integration with automatic encryption method selection, No file size limits for email attachments.

Beyond Encryption Mailock for M365 is developed by Beyond Encryption. FTAPI SecuMails is developed by FTAPI. 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). FTAPI SecuMails integrates with Microsoft Outlook. Check integration compatibility with your existing security stack before deciding.

Beyond Encryption Mailock for M365 and FTAPI SecuMails serve similar Email Encryption use cases: both are Email Encryption tools, both cover Encryption, Outlook. Review the feature comparison above to determine which fits your requirements.