ESET Cloud Office Security vs Mimecast Advanced Email Security: side-by-side comparison (2026)

ESET Cloud Office Security: Cloud email security for Microsoft 365 and Google Workspace applications, built by ESET.

Mimecast Advanced Email Security: Email security platform protecting M365 & Google Workspace from threats, built by Mimecast.

The table above shows where their features, integrations, deployment and company size fit differ.

ESET Cloud Office Security is made by ESET. Mimecast Advanced Email Security is made by Mimecast. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. ESET Cloud Office Security and Mimecast Advanced Email Security are both Email Security Platforms products, and both cover Microsoft 365. Use the table above to see where features, deployment and company size fit differ.