Beyond Encryption Mailock for Outlook vs ShareFile Email & File Encryption: 2026 Comparison

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.

ShareFile Email & File Encryption

Teams managing sensitive file handoffs across mixed email clients need ShareFile Email & File Encryption for its native Outlook and Gmail plugins that encrypt without forcing users into a web portal. SSAE 16 Type II certification and 256-bit encryption covering data in transit and at rest address the PR.DS requirement, while its 100 GB secure sharing ceiling handles most compliance workflows without friction. Skip this if you need granular audit trails and revocation controls; ShareFile encrypts well but treats governance as secondary to ease of use.