Beyond Encryption Mailock® Secure Email is a commercial email encryption solution by Beyond Encryption. Z1 SecureMail Gateway is a commercial email encryption solution by Zertificon Solutions GmbH. Features, integrations, deployment and the company behind each one, side by side.
Encrypted email platform with recipient verification, tracking, and revocation.
Enterprise email encryption gateway supporting S/MIME, OpenPGP, and digital signing.
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Based on what each listing shows: deployment, company size, price and open source.
Beyond Encryption Mailock® Secure Email fits if you want a cloud product.
Z1 SecureMail Gateway fits if you need both cloud and on-premises options.
Common questions when comparing Beyond Encryption Mailock® Secure Email vs Z1 SecureMail Gateway for email encryption.
Beyond Encryption Mailock® Secure Email: Encrypted email platform with recipient verification, tracking, and revocation, built by Beyond Encryption.
Z1 SecureMail Gateway: Enterprise email encryption gateway supporting S/MIME, OpenPGP, and digital signing, built by Zertificon Solutions GmbH. Core capabilities include Digital email signing for authenticity and integrity, Automated certificate management via CertMagic®, Inter-organizational encrypted email exchange via GlobalCrypt®.
The table above shows where their features, integrations, deployment and company size fit differ.
Beyond Encryption Mailock® Secure Email is made by Beyond Encryption. Z1 SecureMail Gateway is made by Zertificon Solutions GmbH. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Beyond Encryption Mailock® Secure Email and Z1 SecureMail Gateway 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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