Email Validator
Validate email addresses against format rules, DNS records, and MX routing.
⚡ 1–5 credits per call
Try it
Fill in the fields below and hit Send.
Validation tiers
| Tier | Checks | Credits |
|---|---|---|
basic |
Email format (regex) | 1 |
dns |
Format + DNS lookup | 3 |
full |
Format + DNS + MX records | 5 |
Notes
- Invalid format returns
valid: falseimmediately without DNS lookup - DNS and MX checks add ~100–500ms latency depending on the domain
- Every successful response includes an
X-Credits-Remainingheader with your updated balance:X-Credits-Remaining: 94
API Reference
Endpoint
POST https://api.lightningapi.tools/email-validator/validateRequired headers
Authorization: Bearer <apiKey>
Content-Type: application/json
Example request
{
"email": "[email protected]",
"tier": "basic"
}
Example response
{
"valid": true,
"email": "[email protected]",
"tier": "basic",
"checks": {
"format": true,
"dns": false,
"mx": false
}
}