MCP server

Email Auditor

io.github.geekmarine/mcp-email-auditor

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

Validates domain email MX records and DNS status via Cloudflare DNS-over-HTTPS.

Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

1

Token cost

About 101 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 mcp-email-auditor https://mcp-mx-validator-worker.stubby76.workers.dev/mcp

Claude Desktop

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

Codex (config.toml)

[mcp_servers.mcp-email-auditor]
url = "https://mcp-mx-validator-worker.stubby76.workers.dev/mcp"

Gemini CLI

{"mcpServers":{"mcp-email-auditor":{"httpUrl":"https://mcp-mx-validator-worker.stubby76.workers.dev/mcp"}}}

Cursor

{"mcpServers":{"mcp-email-auditor":{"url":"https://mcp-mx-validator-worker.stubby76.workers.dev/mcp"}}}

VS Code

{"servers":{"mcp-email-auditor":{"type":"http","url":"https://mcp-mx-validator-worker.stubby76.workers.dev/mcp"}}}

Antigravity

agy mcp add mcp-email-auditor https://mcp-mx-validator-worker.stubby76.workers.dev/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":"mcp-email-auditor","server_url":"https://mcp-mx-validator-worker.stubby76.workers.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"mcp-email-auditor","server_url":"https://mcp-mx-validator-worker.stubby76.workers.dev/mcp"}

Tools

• validate_email_domain_mx ~101 tokens
  Validates email MX records, host reachability, and DNS mail exchange priorities using Cloudflare DNS-over-HTTPS.

Browse

• GitHub tools
• Cloudflare tools
• Domains and DNS
• Email
• GitHub and code hosting
• Cloud and hosting

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