domain_check_email_security
ActiveTool of DataNexus MCP
Check SPF, DMARC, and DKIM email authentication for a domain. domain: Domain without protocol e.g. "google.com". Returns: overall_grade (A–F), spf_score, dmarc_score, dkim_score (each 0–10), spf_record, dmarc_record, dkim_selectors_found. Scores reflect live DNS via Cloudflare DoH — no cache. SPF: -all=10 (strict), ~all=7, ?all=4, none=2, +all=0 (open relay). DMARC: p=reject=10, p=quarantine=7, p=none=4, absent=0; +1 for rua set. DKIM: selector found=10, none=0. Checks 10 common selectors in parallel. Example: check_email_security(domain="google.com")
Parameters schema
{
"type": "object",
"required": [
"domain"
],
"properties": {
"domain": {
"type": "string",
"description": "Domain without protocol e.g. google.com. Required."
}
},
"additionalProperties": false
}Parent server
DataNexus MCP
1/7 registries