Scan and fix email auth (SPF, DMARC, DKIM, MX, blacklists, expiry) + DNS checks. Validated fixes.
How DNS Doctor decides each verdict · How DNS Doctor counts SPF lookups (RFC 7208 §4.6.4), why p=reject requires an alignment signal, why a temporary lookup failure is never a failure verdict, and how the A–F grade is computed. · How DNS Doctor counts SPF lookups · Why p=reject requires an alignment signal · How the SPF supply-chain audit decides a domain is at risk · Why the parked-domain pack is the one place an SPF record is emitted
npm:@dnsdoctor/mcp
| Type | MCP server |
| Section | MCP servers |
| Pricing | free |
| Platform | Command line |
| Systems | cli, api |
| Hosting | cloud |
| Install | mcp |
| Protocols | mcp |
| Site language | en |
| GitHub | dnsdoctor/claude-plugin |
| Launched | 2026-08-04 |