DigiCert Secure Email (S/MIME) Certs is a commercial email encryption solution by DigiCert. Zivver Secure Email Gateway is a commercial email encryption solution by Zivver. Features, integrations, deployment and the company behind each one, side by side.
S/MIME certificates for end-to-end email encryption and signing.
Secure email gateway with automated DLP and zero-knowledge encryption
See more solutions in this category, or build a security stack from your picks.
Based on what each listing shows: deployment, company size, price and open source.
DigiCert Secure Email (S/MIME) Certs fits if you want a cloud product and you are a startup.
Zivver Secure Email Gateway fits if you need both cloud and on-premises options.
Common questions when comparing DigiCert Secure Email (S/MIME) Certs vs Zivver Secure Email Gateway for email encryption.
DigiCert Secure Email (S/MIME) Certs: S/MIME certificates for end-to-end email encryption and signing. Built by DigiCert.
Zivver Secure Email Gateway: Secure email gateway with automated DLP and zero-knowledge encryption. Built by Zivver.
The table above shows where their features, integrations, deployment and company size fit differ.
DigiCert Secure Email (S/MIME) Certs is made by DigiCert. Zivver Secure Email Gateway is made by Zivver. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. DigiCert Secure Email (S/MIME) Certs and Zivver Secure Email Gateway are both Email Encryption products, and both cover Encryption. Use the table above to see where features, deployment and company size fit differ.
No Email Encryption shortlist yet. This is the closest one.
Updated 2026-11-02
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