Beyond Encryption Mailock for Outlook vs FTAPI SecuMails: Side-by-Side Comparison (2026)

Beyond Encryption Mailock for Outlook

SMB and mid-market teams that need to stop encrypted emails from being forwarded or screenshotted after delivery should use Beyond Encryption Mailock for Outlook, since message revocation works even after recipients have opened attachments. The tool covers NIST PR.DS and PR.AA through AES-256 encryption and multi-factor recipient authentication, eliminating the "trust the recipient" problem that plagues standard TLS. Skip this if your org requires integration with Gmail or non-Microsoft clients; Mailock is Outlook-only and leaves users on other platforms without encryption protections.

FTAPI SecuMails

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.