External Recon

External-recon is an MCP server implementation for VS Code that provides penetration testers with network reconnaissance capabilities. Built on FastMCP and inspired by Renae Schilg's work, this Python-based server exposes tools for DNS lookups, email security checks (SPF, DMARC, DKIM), port scanning, and WHOIS lookups. The server enables AI assistants to systematically enumerate domains, discover IP addresses and subdomains, assess email security measures, and identify open ports - making it particularly valuable for security professionals conducting external reconnaissance against target domains.