RPost RMail Email Encryption is a commercial email encryption solution by Rmail. 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.
Email encryption service with automated delivery and compliance tracking
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Based on what each listing shows: deployment, company size, price and open source.
RPost RMail Email Encryption fits if you want a cloud product.
SEPPmail Secure Email Gateway fits if you need to run it on your own servers.
Common questions when comparing RPost RMail Email Encryption vs SEPPmail Secure Email Gateway for email encryption.
RPost RMail Email Encryption: Email encryption service with automated delivery and compliance tracking, built by Rmail.
SEPPmail Secure Email Gateway: Built by SEPPmail AG.
The table above shows where their features, integrations, deployment and company size fit differ.
RPost RMail Email Encryption is made by Rmail. 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. RPost RMail Email Encryption and SEPPmail Secure Email Gateway are both Email Encryption products, and both cover Encryption, TLS. Use the table above to see where features, deployment and company size fit differ.
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Updated 2026-11-02
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