Beyond Encryption Mailock for Outlook vs Trustifi Outbound Shield: 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.

Trustifi Outbound Shield

Mid-market and enterprise teams handling regulated data will find Trustifi Outbound Shield's appeal in its automated encryption policies paired with real-time DLP scanning, cutting implementation friction that typically derails compliance projects. The tool covers 10+ regulatory frameworks out of the box and supports both Exchange on-premise and Office 365, meaning you're not forced into cloud-only architecture. Skip this if your organization needs endpoint detection or network monitoring; Trustifi stays in the email lane and makes no apologies for it.