Discern for Mimecast vs Zivver Secure Business Email: Side-by-Side Comparison (2026)

Discern for Mimecast

Mid-market and enterprise teams drowning in Mimecast configuration drift will get immediate value from Discern for Mimecast because it maps your actual controls against MITRE ATT&CK and CIS frameworks, then automates remediation instead of just flagging gaps. The closed-loop policy enforcement cuts the typical discovery-to-fix cycle from weeks to days, and the peer benchmarking dashboard tells you honestly where you stand against similar organizations. Skip this if your Mimecast deployment is already locked down or if you lack the API access needed for continuous data ingestion; Discern only works well when you're willing to let it actively reshape your security posture.

Zivver Secure Business Email

Mid-market and enterprise teams with strict data residency or compliance requirements will get the most from Zivver Secure Business Email, particularly its automated outbound content scanning that catches data exfiltration before it leaves your network without requiring manual intervention. The platform holds GDPR, NIS2, DORA, and HIPAA certifications simultaneously, which matters if you operate across regulated jurisdictions. Skip this if your priority is inbound threat detection alone; Zivver's strength is preventing what employees accidentally send out, not just blocking what arrives in the inbox.