PRIM'X ZEDMAIL is a commercial email encryption solution by PRIM'X. StealthMail is a commercial email encryption solution by StealthMail. Features, integrations, deployment and the company behind each one, side by side.
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VisitTransparent email and attachment encryption for corporate messaging via Outlook
Enterprise email security via encrypted stealth-links, bypassing SMTP vulnerabilities.
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Based on what each listing shows: deployment, company size, price and open source.
PRIM'X ZEDMAIL fits if you need to run it on your own servers and you are a small business.
StealthMail fits if you need both cloud and on-premises options.
Common questions when comparing PRIM'X ZEDMAIL vs StealthMail for email encryption.
PRIM'X ZEDMAIL: Transparent email and attachment encryption for corporate messaging via Outlook, built by PRIM'X.
StealthMail: Enterprise email security via encrypted stealth-links, bypassing SMTP vulnerabilities, built by StealthMail.
The table above shows where their features, integrations, deployment and company size fit differ.
PRIM'X ZEDMAIL is made by PRIM'X. StealthMail is made by StealthMail. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. PRIM'X ZEDMAIL and StealthMail are both Email Encryption products, and both cover Encryption. Use the table above to see where features, deployment and company size fit differ.
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Updated 2026-11-01
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