StealthMail is a commercial email encryption solution by StealthMail. Zivver Secure Email Gateway is a commercial email encryption solution by Zivver. Features, integrations, deployment and the company behind each one, side by side.
Enterprise email security via encrypted stealth-links, bypassing SMTP vulnerabilities.
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.
Zivver Secure Email Gateway fits if you are a small business.
Common questions when comparing StealthMail vs Zivver Secure Email Gateway for email encryption.
StealthMail: Enterprise email security via encrypted stealth-links, bypassing SMTP vulnerabilities, built by StealthMail.
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.
StealthMail is made by StealthMail. 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. StealthMail 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 2026-11-01
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