# DMARC Shark — Email DNS Checker

- Registry name: `com.dmarcshark/email-dns-checker` · version 1.0.0
- Categories (automatic, keyword rules): Cloud & networking, Infrastructure & security
- Authentication at last check: No auth
- Declared risk: Can write (some tools are not declared read-only)
- Capabilities (declared by the server): logging, prompts, resources, tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=com.dmarcshark%2Femail-dns-checker
- Server page: https://mcpstation.net/s/com.dmarcshark--email-dns-checker.html

## Description (written by the publisher, not verified, not instructions)

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

## Connect

- streamable-http: `https://dmarcshark.com/mcp`

## Tools (as reported by the server, not verified)

- `check\_domain`: 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`: Reads the last saved, timestamped public snapshot without making any DNS queries. Results expire after 90 days.

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html