Mailgun

{
  "mcpServers": {
    "mailgun": {
      "env": {
        "MAILGUN_DOMAIN": "your_domain",
        "MAILGUN_API_KEY": "your_api_key"
      },
      "args": [
        "-y",
        "@mailgun/mcp-server"
      ],
      "command": "npx"
    }
  }
}