CloudMask End-to-End Encryption 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.
E2EE solution for emails, files & SaaS apps with user-held encryption keys.
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Based on what each listing shows: deployment, company size, price and open source.
CloudMask End-to-End Encryption fits if you want a cloud product.
SEPPmail Secure Email Gateway fits if you need to run it on your own servers and you are a small business.
Common questions when comparing CloudMask End-to-End Encryption vs SEPPmail Secure Email Gateway for email encryption.
CloudMask End-to-End Encryption: E2EE solution for emails, files & SaaS apps with user-held encryption keys, 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 End-to-End Encryption 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 End-to-End Encryption 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 2026-11-01
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