Beyond Encryption Mailock for M365 vs Seclore Email Encryption: Side-by-Side Comparison (2026)

Beyond Encryption Mailock for M365

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.

Seclore Email Encryption

Mid-market and enterprise teams handling regulated data will find real value in Seclore Email Encryption's ability to revoke access to sent emails after delivery, which standard TLS encryption simply cannot do. The tool covers both PR.DS data security and DE.CM continuous monitoring under NIST CSF 2.0, meaning you get encryption plus audit trails that actually matter for compliance audits. Skip this if your primary concern is stopping inbound phishing; Seclore is built for controlling what happens to sensitive data after it leaves your organization, not filtering what comes in.