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MAILTYPE — Email Domain Capability Intelligence for Grok

io.github.gsterlingpress/mailtype

Email-domain intelligence: MX capability, provider, disposable status, SPF, DMARC, and MTA-STS.

client:Grok transport:streamable-http

Install MAILTYPE — Email Domain Capability Intelligence in Grok

.mcp.json (in your project root)

{
  "mcpServers": {
    "mailtype": {
      "type": "http",
      "url": "https://mailtype-api.onrender.com/mcp"
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs

MAILTYPE — Email Domain Capability Intelligence in other clients