The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
Mail Security Tools
Free DMARC, SPF, DKIM and MX checks, a 1-cent email security score and a $1 DNS fix plan.
Install
$
claude mcp add --transport http mail-security-tools https://api.mailsecuritytools.com/mcpInstall command taken from the project's README or registry entry. Always review code before running it.
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