What are Microsoft’s SmartScreen filters?

Microsoft SmartScreen is a multi-layered filtering system:

Content analysis: Scans message content for spam patterns, phishing indicators, and malicious characteristics.

Reputation evaluation: Checks IP and domain reputation against Microsoft's databases.

URL scanning: Evaluates links for malicious destinations.

Machine learning: Pattern recognition based on training data.

SmartScreen protects both Outlook.com consumer accounts and Microsoft 365 enterprise environments.

Microsoft's inspection system checking cargo, crew credentials, and intended destinations.