IntoDNS MCP Server — DNS & Email Security Scanning
@RoscoNL
Free MCP server that gives Claude, Cursor, Windsurf, and other AI assistants live DNS and email security scanning. Exposes 5 tools: scan_domain (full DNS & email security scan with A+ to F grade), check_email_security (SPF, DKIM, DMARC + blacklists), lookup_dns (any record type),
概览
What is IntoDNS MCP Server?
IntoDNS MCP Server gives AI assistants like Claude, Cursor, and Windsurf live DNS and email security scanning directly inside the chat. It is powered by IntoDNS.ai, a free DNS & email security scanner from Cobytes B.V. (Netherlands), with no authentication or sign-up required.
How to use IntoDNS MCP Server?
Install in seconds with npx -y intodns-mcp or add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json) by specifying the command and arguments as shown in the README.
Key features of IntoDNS MCP Server
- 5 built‑in tools for DNS and email security scanning
- Full domain scan with letter grade A+ to F, 50+ checks
- SPF, DKIM, DMARC validation plus blacklist status
- Live record lookup (A, AAAA, MX, TXT, NS, CNAME, SOA, CAA, SRV)
- Global propagation check and DNSSEC chain of trust validation
Use cases of IntoDNS MCP Server
- Troubleshoot email deliverability by validating SPF, DKIM, and DMARC
- Assess domain security posture with a single scan command
- Look up any DNS record type during troubleshooting or development
- Verify DNSSEC chain of trust for your or your client’s domains
- Check propagation of recent DNS changes across multiple resolvers
FAQ from IntoDNS MCP Server
Is any authentication or sign-up required?
No. The server requires no authentication, no sign-up, and is free forever.
What tools does IntoDNS MCP Server provide?
It provides five tools: scan_domain, check_email_security, lookup_dns, check_dns_propagation, and validate_dnssec.
How do I install the server?
Run npx -y intodns-mcp in your terminal, or add a configuration entry for intodns in your Claude Desktop config file.
What DNS record types can I look up with lookup_dns?
The tool supports A, AAAA, MX, TXT, NS, CNAME, SOA, CAA, and SRV records.
Where does the scanning data come from?
All scans are powered by the IntoDNS.ai service (by Cobytes B.V.), which processes DNS and email security checks on its servers.
