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Deliverability Doctor

io.github.Integrity-Os/deliverability-doctor · v1.0.2

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

Connect Remote server

Terminal
claude mcp add --transport http deliverability-doctor https://deliverability-doctor.deliverability-doctor.workers.dev/mcp
~/.cursor/mcp.json
{
  "mcpServers": {
    "deliverability-doctor": {
      "url": "https://deliverability-doctor.deliverability-doctor.workers.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "deliverability-doctor": {
      "type": "http",
      "url": "https://deliverability-doctor.deliverability-doctor.workers.dev/mcp"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://deliverability-doctor.deliverability-doctor.workers.dev/mcp

Tools 2 found in our last check

  • 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, MX, and DKIM at common selectors. Returns a graded report with concrete fixes. Accepts a bare domain, a URL, or an em…

  • 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

Endpointhttps://deliverability-doctor.deliverability-doctor.workers.dev/mcp (Streamable HTTP)
First published25 Aug 2026
Last updated25 Aug 2026
Registry nameio.github.Integrity-Os/deliverability-doctor

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