Email Security API

Use email security checks to inspect whether a domain has the DNS records needed to reduce spoofing and improve mail trust.

Authentication is required.

Endpoint

GET /email/security

Query Parameters

Parameter	Required	Description
domain	Yes	Domain to inspect.

Example

curl "https://api.requestguard.com/v1/email/security?domain=example.com" \
  -H "Authorization: Bearer rg_sk_live_..."

Response

{
  "domain": "example.com",
  "spf": {
    "found": true,
    "records": ["v=spf1 -all"]
  },
  "dkim": {
    "found": false,
    "selectors_checked": ["default", "google", "selector1", "selector2"],
    "records": []
  },
  "dmarc": {
    "found": true,
    "policy": "reject",
    "records": ["v=DMARC1; p=reject"]
  },
  "sources": [
    {
      "name": "DNS TXT lookup",
      "type": "dataset",
      "matched": true,
      "category": "dns"
    }
  ]
}

For user signup or checkout risk decisions, use Fraud Decisioning so email posture can be combined with IP, device, domain, and behavior signals.