Mimecast Email Security

Mimecast wraps email security, cloud archiving, and business continuity into a single subscription service that treats email not just as a threat vector but as a business-critical system that needs to keep running no matter what. The platform scans all inbound email in real time, inspecting headers, domain information, and body content for indicators of phishing, ransomware, and business email compromise. Targeted Threat Protection adds layers for URL rewriting, attachment sandboxing, and impersonation detection that catch the threats designed to bypass basic gateway filtering.

Mailbox Continuity is the feature that earns Mimecast its keep during the worst possible moments. When your primary mail server goes down (planned maintenance or otherwise), users continue sending and receiving email through Mimecast's cloud infrastructure with inline threat inspection still active. Journal Archiving provides an independent, immutable archive of all email in the cloud, ensuring data is always available, always replicated, and always safe for compliance, eDiscovery, and the inevitable moment when legal asks for emails from three years ago.

For organizations running Microsoft 365 or Google Workspace that need a resilience layer their native email provider doesn't offer, Mimecast fills the gap between what the platform provides and what regulated industries actually require. It's the rare email security solution that treats uptime as seriously as threat prevention, recognizing that an email system nobody can reach is just as damaging as one that's been compromised.