{"schema_version":1,"snapshot_id":"bfb936f5ceae4a7427f93961201723779c3021545a3c4222395e8678314c3e55","generated_at":"2026-10-17T21:51:24.907033+00:00","notice":"Potential GTM matches from directory metadata and model triage. Discovered does not mean vendor-verified or tested. Pending records remain under review; pricing and install details require primary sources.","canonical_url":"https://gtmmcps.com/discoveries/e53a0c84cb8fe6f1802e","record":{"id":"e53a0c84cb8fe6f1802e","name":"DnsGuard","aliases":["DnsGuard"],"description":"Free remote MCP server that checks a domain's email authentication (SPF, DKIM, DMARC, BIMI, MX, MTA-STS, TLS-RPT) and returns a 0–100 score, an A–F grade and plain-English fixes. No key needed for light use; DnsGuard Pro ($9/mo) raises the limits.\n\n## Quick start\nAdd to your MCP client config (most clients accept this; VS Code uses a `servers` key instead of `mcpServers`):\n\n```json\n{\"mcpServers\":{\"dnsguard\":{\"type\":\"http\",\"url\":\"https://dnsguard.mike-tusa.workers.dev/mcp\"}}}\n```\n\nThen ask your agent: \"Check the email security of example.com with DnsGuard.\" It calls `check_domain` with `{\"domai","repository_url":null,"sources":[{"source_id":"smithery","url":"https://api.smithery.ai/servers","observed_at":"2026-10-17T21:40:22.481400+00:00","source_record_id":"cf322404-1ad4-4cc6-b0ae-af15b7757c12","source_record_name":"mike-tusa/dnsguard"}],"relevance_signals":["email"],"classification":{"label":"pending","method":"not-yet-classified"},"catalog_ids":[],"verification_status":"discovered","vendor_ownership":"not-verified","execution_tested":false,"pricing_status":"not-verified","documentation_status":"not-verified"}}