MAILTYPE — Email Domain Capability Intelligence for Gemini CLI

io.github.gsterlingpress/mailtype

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

client:Gemini CLI transport:streamable-http

Install MAILTYPE — Email Domain Capability Intelligence in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

{
  "mcpServers": {
    "mailtype": {
      "httpUrl": "https://mailtype-api.onrender.com/mcp"
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs