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Beyond Encryption Mailock for M365 is a commercial email encryption tool by Beyond Encryption. FTAPI SecuMails is a commercial email encryption tool by FTAPI. Compare features, ratings, integrations, and community reviews side by side to find the best email encryption fit for your security stack.
CST VerdictBased 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.
Mid-market and enterprise teams handling sensitive data under GDPR or NIS-2 should use FTAPI SecuMails if your workflow lives in Outlook and you need encryption that doesn't burden recipients. The Outlook Add-in works across both new and classic versions, centralized S/MIME certificate management eliminates the renewal headache, and recipients need no special software to decrypt,that's friction eliminated at scale. Skip this if your threat model requires detection and response capabilities beyond encryption, or if you're standardizing on cloud-native email security platforms outside the Microsoft ecosystem; FTAPI SecuMails solves the encryption problem cleanly but doesn't replace CASB or advanced threat detection.
AES-256 encrypted email add-on for M365 with auth & revocation.
Encrypted email solution for GDPR-compliant sending via Outlook or browser.
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Common questions about comparing Beyond Encryption Mailock for M365 vs FTAPI SecuMails 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)..
FTAPI SecuMails: Encrypted email solution for GDPR-compliant sending via Outlook or browser. built by FTAPI. headquartered in Germany. 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.
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