Email Validation API — Format, MX, Disposable Check

Description

Comprehensive email validation: check format (RFC 5322), verify MX records exist, detect disposable email providers, and identify free email services (Gmail, Yahoo, etc.). All without sending a verification email.

Use Cases

Validate email addresses during user registration
Clean email lists before sending campaigns
Detect disposable and free email addresses
Reduce bounce rates and improve deliverability

Parameters

Name	Type	Required	Description
`email`	string	Yes	Email address to validate
`format`	string	No	Response format: json or markdown

Example Request

bash

curl -H 'X-API-Key: YOUR_KEY' \
  'https://api.example.com/dns/[email protected]'

python

import httpx

resp = httpx.get(
    "https://api.example.com/dns/[email protected]",
    headers={"X-API-Key": "YOUR_KEY"},
)
print(resp.json())

javascript

const resp = await fetch("https://api.example.com/dns/[email protected]", {
  headers: { "X-API-Key": "YOUR_KEY" },
});
const data = await resp.json();
console.log(data);

Example Response

json

{
  "email": "[email protected]",
  "valid_format": true,
  "has_mx": true,
  "disposable": false,
  "free_provider": false,
  "score": 95
}

Email Validation

Description

Use Cases

Parameters

Related Tools in Email

Email Security Posture

Email Authentication Validator