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Beyond Encryption Mailock® Secure Email is a commercial email encryption tool by Beyond Encryption. Zivver Secure Email Gateway is a commercial email encryption tool by Zivver. Compare features, ratings, integrations, and community reviews side by side to find the best email encryption fit for your security stack.
Based on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Teams handling regulated data who need proof that sensitive emails were opened, not just sent, should consider Beyond Encryption Mailock® Secure Email; message tracking and revocation give you the audit trail that generic TLS encryption cannot. AES-256 encryption with multi-factor recipient verification covers the NIST PR.DS and PR.AA controls auditors actually ask for. Skip this if your priority is preventing internal data exfiltration rather than securing external communication; Mailock assumes the recipient's inbox is the trust boundary, not an extension of your network.
Mid-market and enterprise security teams drowning in email DLP tuning will see immediate value in Zivver Secure Email Gateway because it detects sensitive data without requiring users to classify it, reducing the false-positive fatigue that kills adoption. The tool handles GDPR, HIPAA, and DORA compliance out of the box while integrating directly into Microsoft 365 and Gmail without ripping out existing infrastructure. Skip this if your organization needs advanced threat detection on inbound mail or is heavily invested in on-premises Exchange; Zivver's strength is automated outbound protection, not inbound scanning.
Encrypted email platform with recipient verification, tracking, and revocation.
Secure email gateway with automated DLP and zero-knowledge encryption
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Common questions about comparing Beyond Encryption Mailock® Secure Email vs Zivver Secure Email Gateway for your email encryption needs.
Beyond Encryption Mailock® Secure Email: Encrypted email platform with recipient verification, tracking, and revocation. built by Beyond Encryption. headquartered in United Kingdom. Core capabilities include AES-256 encryption for email messages and attachments, Multi-factor recipient authentication and identity verification, Message delivery and open tracking for compliance..
Zivver Secure Email Gateway: Secure email gateway with automated DLP and zero-knowledge encryption. built by Zivver. headquartered in Netherlands. Core capabilities include Automated sensitive data detection in outbound emails, Zero-knowledge encryption for all outgoing emails, Rule-based security policy enforcement..
Both serve the Email Encryption market but differ in approach, feature depth, and target audience.
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