io.github.Integrity-Os/deliverability-doctor

up checked 2026-11-11T05:38:39.210Z

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Publisher-provided description

Check if a domain can be email-spoofed: SPF, DMARC, DKIM, MX graded from public DNS. Authless.

Summary by lookupd

Grades a domain's email spoofing exposure from public DNS (SPF, DMARC, DKIM, MX) and compares up to five domains side by side.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http deliverability-doctor https://deliverability-doctor.deliverability-doctor.workers.dev/mcp

Codex, remote (streamable-http)

codex mcp add deliverability-doctor --url https://deliverability-doctor.deliverability-doctor.workers.dev/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "deliverability-doctor": {
      "url": "https://deliverability-doctor.deliverability-doctor.workers.dev/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (2 tools)

Publisher-provided text

• check_email_security Checks whether a domain can be email-spoofed, using public DNS only. Verifies SPF (including the RFC 7208 multiple-record permerror), DMARC policy and reporting
• compare_email_security Runs the email-security check on 2–5 domains and returns a comparison table with per-domain grades. Useful for checking your domain against competitors.

Details

• Version: 1.0.2
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 218 ms
• First indexed: 2026-11-01T09:10:42.901Z
• Last seen in registry: 2026-11-01T09:10:42.901Z
• Repository: https://github.com/Integrity-Os/deliverability-doctor

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