MCP server

DMARC Shark — Email DNS Checker Official

com.dmarcshark/email-dns-checker

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Website Source

At a glance

Type

MCP server

Publisher

dmarcshark.com (verified by the MCP Registry)

Status

Working at last check

Tools

2

Token cost

About 219 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http email-dns-checker https://dmarcshark.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.email-dns-checker]
url = "https://dmarcshark.com/mcp"

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"email-dns-checker":{"type":"http","url":"https://dmarcshark.com/mcp"}}}

Antigravity

agy mcp add email-dns-checker https://dmarcshark.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"email-dns-checker","server_url":"https://dmarcshark.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"email-dns-checker","server_url":"https://dmarcshark.com/mcp"}

Tools

• check_domain ~130 tokens
  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.
• get_saved_result ~89 tokens
  Reads the last saved, timestamped public snapshot without making any DNS queries. Results expire after 90 days.

Browse

• Domains and DNS
• Email

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Badge for your README

[![AptLynx](https://aptlynx.net/badge/com.dmarcshark/email-dns-checker.svg)](https://aptlynx.net/servers/com.dmarcshark/email-dns-checker)

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