Email Validation API

Email Validation,
Done Right.

Real-time validation with AI-powered risk scoring. Detect disposable addresses, verify MX records, and protect your app in under a second.

Get API Access Try Demo ↓
<1s
Response time
99%
Accuracy
10+
Data fields
EU
Hosted
What You Get
One call. Full picture.

Every validation returns 10+ data points — format, domain, MX records, disposable detection, and an AI risk score. No extra work on your end.

◈
Format & Syntax Check
Instantly catches malformed addresses, double @ symbols, missing domains, and invalid TLDs before they enter your database.
◎
MX Record Lookup
Verifies the domain actually accepts email by checking live DNS MX records. A valid format means nothing if the domain cannot receive mail.
⬡
Disposable Detection
Blocks throwaway services like Mailinator, Guerrilla Mail, and thousands of others used to bypass signup restrictions.
◐
Business vs Personal
Identifies whether an email belongs to a business domain or a free provider like Gmail. Essential for B2B apps that need work emails only.
◉
AI Risk Scoring
Claude AI analyzes all signals and returns a 0–100 risk score with a LOW, MEDIUM, HIGH, or INVALID rating. No extra logic to write.
◇
Typo Suggestions
When an email looks like a typo of a known provider — gmial.com, yahooo.com — the API suggests the correct version automatically.
Our Guarantees
Built to be relied on

When you build on MailForge you need to know it will be there every time.

99%
Deliverability Improvement
Validated email lists see up to 99% improvement in deliverability. Fewer bounces. Higher inbox rates. Better sender reputation.
<1s
Response Time
Sub-second response on every request. Fast enough to validate on your signup form in real time without slowing down your users.
EU
GDPR Compliant
Hosted in the European Union. No data stored after processing. Fully compliant with GDPR requirements for EU-based applications.
24h
Support Response
Every support request answered within 24 hours. Real responses from the developer who built the API — not automated replies.
Mock Demo

See it in action

Type any email address below and see exactly what data the API returns. Switch to Live mode to test against real mail servers.

Quick load: Valid business Gmail Disposable Invalid
@
Awaiting input
Validation output
Enter an email or click a sample above
Raw API response application/json
Start free — no credit card required

Start validating emails today

Integrate in minutes. Works with any language. Cancel any time.

Get API Access on RapidAPI