Nexor Sentinel is a high-assurance email guard designed to prevent sensitive information loss and mitigate the risk of malware attacks. It protects organizations by validating that inbound and outbound electronic messages conform to the security policies of the protected domain, ensuring that messages only pass between domains via a trusted, secured path. Non-conformant messages are automatically rejected and quarantined after being scanned and validated against defined security rules.
The system provides message guarding and validation for both SMTP and X.400 email protocols. It supports signed and encrypted content types, multiple security label formats, and various label locations. Built upon an EAL4+ evaluated product and listed on NATO's NIAPC catalogue, the platform incorporates full message logging to provide traceability of communication exchanges and maintain system integrity.