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DMARC Shark — Email DNS Checker

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

我該用這個嗎

品質與安全性

A
說明品質
100%
結構描述完整度
80%
命名品質
100%
汙染風險
100%
權限相符程度
100%
協定合規性
100%

根據工具定義與協定合規性的自動化分析。

上下文成本

~399Token（工具定義）
~1.5 KB典型回應大小
極小的注意力影響（128k 上下文的 0.31%）

這是每次將伺服器的工具載入模型上下文時所消耗的約略 token 數量。數量越高，可用於其他工作的注意力就越少。

安裝

一鍵安裝

將以下內容加入你的 `claude_desktop_config.json` 檔案：

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

遠端端點

https://dmarcshark.com/mcpstreamable-http

它能做什麼

工具清單

工具（2）

🟢 唯讀🟡 寫入🔴 刪除⚪ 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.

輸入結構描述

{
  "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"
}

輸出結構描述

{
  "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.

輸入結構描述

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

輸出結構描述

{
  "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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