check_dkim

Active

declared in 3.29.5

Look up DKIM records for a domain. Probes common selectors, validates the signing algorithm used for outgoing email (RSA-1024/2048, Ed25519), and reports key strength. Use to verify that outbound email signatures are cryptographically sound. Part of the scan_domain audit.

Parameters schema

{
  "type": "object",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "maxLength": 253,
      "minLength": 1,
      "description": "Domain to check (e.g., example.com)"
    },
    "format": {
      "enum": [
        "full",
        "compact"
      ],
      "type": "string",
      "description": "Output verbosity. Auto-detected if omitted."
    },
    "selector": {
      "type": "string",
      "pattern": "^[a-z0-9]([a-z0-9-]*[a-z0-9])?$",
      "maxLength": 63,
      "description": "DKIM selector. Omit to probe common ones."
    },
    "force_refresh": {
      "type": "boolean",
      "description": "Bypass cache and run a fresh check. Useful after DNS changes."
    }
  }
}

What this tool wraps· 0 endpoints

min confidence0.70 0.50

No endpoints wrapped at confidence ≥ 0.50.

Parent server

com.blackveilsecurity/dns

https://github.com/MadaBurns/bv-mcp

2/7 registries

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