Kiteworks Secure Email vs Paubox Email Encryption: Side-by-Side Comparison (2026)

Kiteworks Secure Email

Mid-market and enterprise teams handling regulated data through email will find Kiteworks Secure Email worth the deployment effort because its policy automation engine actually enforces DLP rules at send-time rather than just logging violations afterward. FIPS 140-2 validated encryption across S/MIME, OpenPGP, and TLS 1.3 plus sandboxing and content disarm coverage address the PR.DS and PR.PS controls that compliance auditors actually ask about. Skip this if your organization needs a lightweight, user-friction-free solution; Kiteworks requires integration work and will surface policy violations that force conversations with business teams about what email traffic is actually allowed.

Paubox Email Encryption

Healthcare IT teams and compliance officers at startups through mid-market will find Paubox Email Encryption the fastest path to HIPAA-compliant email without retraining users; encryption happens automatically on every outbound message, no portal logins or passcodes required. HITRUST certification and included BAA eliminate the vendor assessment friction that typically stalls healthcare deals, while native Google Workspace and Microsoft 365 integration means deployment takes weeks, not months. Skip this if your organization needs data loss prevention rules, advanced threat detection, or multi-channel encryption beyond email; Paubox does one thing and handles the compliance burden so you don't have to.