SpamAssassin

This SpamAssassin MCP server provides AI assistants with defensive email security analysis capabilities through integration with the SpamAssassin spam detection engine. Built in Go with a containerized Docker architecture, it offers tools for scanning email content, checking sender reputation, explaining spam scores, and managing SpamAssassin rule configurations while maintaining strict security boundaries that prevent any offensive operations like email sending or malicious content generation. The implementation includes comprehensive security controls including rate limiting, input validation, audit logging, and container hardening, making it suitable for security researchers, email administrators, and AI systems that need to analyze email threats in a safe, defensive-only environment.