Paubox Email Encryption vs Z1 SecureMail Gateway: Side-by-Side Comparison (2026)

Paubox Email Encryption: HIPAA-compliant email encryption for Google Workspace and Microsoft 365. built by Paubox..

Z1 SecureMail Gateway: Enterprise email encryption gateway supporting S/MIME, OpenPGP, and digital signing. built by Zertificon Solutions GmbH. Core capabilities include Digital email signing for authenticity and integrity, Automated certificate management via CertMagic®, Inter-organizational encrypted email exchange via GlobalCrypt®..

Both serve the Email Encryption market but differ in approach, feature depth, and target audience.

Paubox Email Encryption is developed by Paubox. Z1 SecureMail Gateway is developed by Zertificon Solutions GmbH. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Paubox Email Encryption and Z1 SecureMail Gateway serve similar Email Encryption use cases: both are Email Encryption tools, both cover Healthcare, TLS. Review the feature comparison above to determine which fits your requirements.