Z1 SecureMail Gateway vs Zivver Secure Email Gateway: Side-by-Side Comparison (2026)

Z1 SecureMail Gateway: Enterprise email encryption gateway supporting S/MIME, PGP, and digital signing. built by Zertificon Solutions GmbH. Core capabilities include S/MIME and PGP email encryption at the gateway level, Digital email signing for authenticity and integrity, Automated certificate management via CertMagic®..

Zivver Secure Email Gateway: Secure email gateway with automated DLP and zero-knowledge encryption. built by Zivver..

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

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

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