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索引已观测

DMARC Shark — Email DNS Checker

Check a domain's public SPF, DMARC, MX and DKIM DNS records on demand. No account required.

我该使用它吗

质量与安全性

A
描述质量
100%
模式完整度
80%
命名质量
100%
投毒风险
100%
权限匹配度
100%
协议合规性
100%

基于对工具定义和协议合规性的自动分析。

上下文开销

~399token 数（工具定义）
~1.5 KB典型响应大小
对注意力的影响极小（占 128k 上下文窗口的 0.31%）

这是每次将服务器的工具加载到模型上下文窗口时所消耗的大致 token 数。数值越高，可用于其他任务的注意力就越少。

安装

一键安装

将以下内容添加到你的 `claude_desktop_config.json` 文件中：

{
  "mcpServers": {
    "email-dns-checker": {
      "url": "https://dmarcshark.com/mcp"
    }
  }
}

远程端点

https://dmarcshark.com/mcpstreamable-http

它能做什么

工具清单

工具（2）

🟢 只读🟡 写入🔴 删除⚪ 未知
🟢check_domain(domain, selectors)

Runs fresh, bounded public SPF, DMARC, MX and optionally specified DKIM-selector DNS checks. Changes the public saved snapshot. Rate limited. DNS findings do not prove message authentication.

输入模式

{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string"
    },
    "selectors": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 2
    }
  },
  "required": [
    "domain"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

输出模式

{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string"
    },
    "checked_at": {
      "type": "string"
    },
    "source": {
      "type": "string"
    },
    "saved": {
      "type": "boolean"
    },
    "findings": {
      "type": "array"
    },
    "recommendations": {
      "type": "array"
    }
  },
  "required": [
    "domain",
    "checked_at",
    "source",
    "saved",
    "findings",
    "recommendations"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}
🟢get_saved_result(domain)

Reads the last saved, timestamped public snapshot without making any DNS queries. Results expire after 90 days.

输入模式

{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string"
    }
  },
  "required": [
    "domain"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

输出模式

{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string"
    },
    "checked_at": {
      "type": "string"
    },
    "source": {
      "type": "string"
    },
    "saved": {
      "type": "boolean"
    },
    "findings": {
      "type": "array"
    },
    "recommendations": {
      "type": "array"
    }
  },
  "required": [
    "domain",
    "checked_at",
    "source",
    "saved",
    "findings",
    "recommendations"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

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已验证未记录版本2 个工具