Mesa Agentic Email Security Reviews & Product Details

Mesa Security is an agentic email security platform that helps IT and security teams investigate and respond to phishing, business email compromise (BEC), impersonation, and account compromise. Mesa’s specialist AI agents analyze email content, links, attachments, and sender signals alongside threat intelligence and organizational context. They gather evidence, explain findings, and carry investigations through multiple steps to help teams make informed response decisions. The platform brings together email threat detection, investigation, threat hunting, and response. It also supports phishing-domain takedown workflows, helping teams investigate malicious infrastructure and prepare abuse reports for approval. Designed for businesses and managed service providers, Mesa integrates with Microsoft 365 to reduce manual investigation work and extend security teams’ capabilities. Teams retain control through configurable response policies and approval workflows.