Email Authentication Validator API — SPF, DKIM, DMARC Deep Check

Description

Deep validation of email authentication records — parse and validate SPF syntax, check DKIM selectors, analyze DMARC policies. More detailed than the email security posture check, with field-by-field validation results.

Use Cases

Detailed SPF record syntax validation
DKIM selector and key verification
DMARC policy analysis and compliance checking
Troubleshoot email delivery issues

Parameters

Name	Type	Required	Description
`domain`	string	Yes	Domain name to validate
`format`	string	No	Response format: json or markdown

Example Request

bash

curl -X POST -H 'X-API-Key: YOUR_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"domain": "example.com"}' \
  'https://api.example.com/dns/email-auth'

python

import httpx

resp = httpx.post(
    "https://api.example.com/dns/email-auth",
    headers={"X-API-Key": "YOUR_KEY"},
    json={"domain": "example.com"},
)
print(resp.json())

javascript

const resp = await fetch("https://api.example.com/dns/email-auth", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "X-API-Key": "YOUR_KEY",
  },
  body: JSON.stringify({"domain": "example.com"}),
});
const data = await resp.json();
console.log(data);

Example Response

json

{
  "domain": "example.com",
  "spf": {"valid": true, "mechanisms": 4, "lookups": 3, "warnings": []},
  "dmarc": {"valid": true, "policy": "reject", "rua": "mailto:[email protected]"},
  "overall_valid": true
}

Email Authentication Validator

Description

Use Cases

Parameters

Related Tools in Email

Email Validation

Email Security Posture