Beyond Encryption Mailock for M365 vs INKY 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.

INKY Email Encryption

SMB and mid-market teams drowning in email-borne data exfiltration will get real value from INKY Email Encryption because it bundles encryption with behavioral threat detection in one platform instead of forcing you to stitch two vendors together. The tool covers NIST PR.DS data security and PR.PS platform security, meaning it actually enforces encryption at rest and in transit while catching the anomalous send patterns that slip past traditional gateways. Skip this if your organization needs a standalone encryption appliance for highly regulated industries with air-gapped requirements; INKY's cloud-first architecture and tight Microsoft 365/Google Workspace coupling assume modern SaaS environments, not legacy on-prem mail servers.