CloudMask Secure Gmail is a commercial email encryption solution by CloudMask. SEPPmail Secure Email Gateway is a commercial email encryption solution by SEPPmail AG. Features, integrations, deployment and the company behind each one, side by side.
End-to-end Gmail encryption with user-controlled keys and trusted contacts.
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.
CloudMask Secure Gmail fits if you want a cloud product and you are a startup.
SEPPmail Secure Email Gateway fits if you need to run it on your own servers.
Common questions when comparing CloudMask Secure Gmail vs SEPPmail Secure Email Gateway for email encryption.
CloudMask Secure Gmail: End-to-end Gmail encryption with user-controlled keys and trusted contacts, built by CloudMask.
SEPPmail Secure Email Gateway: Built by SEPPmail AG.
The table above shows where their features, integrations, deployment and company size fit differ.
CloudMask Secure Gmail is made by CloudMask. SEPPmail Secure Email Gateway is made by SEPPmail AG. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. CloudMask Secure Gmail and SEPPmail 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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