Email Validation API
Verify email addresses in real-time with 99.2% accuracy. Protect deliverability, reduce bounces, and stop wasting money on invalid emails.
curl -X POST https://api.mailodds.com/v1/validate \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{"email": "user@example.com"}'
Why Email Validation Matters
Wasted Budget
Every email sent to an invalid address costs money. ESPs charge per send, and bounced emails deliver zero ROI.
Damaged Reputation
ISPs track your bounce rate. Exceed 2% and your emails start landing in spam folders - or get blocked entirely.
Hidden Threats
Disposable emails, typos, and defunct domains slip through standard forms. Each one pollutes your list and skews metrics.
How It Works
Three steps to validated emails. No complex setup required.
Send an Email
Single POST request with the email address. That's it. Works from any language.
Get Instant Verification
SMTP verification, MX lookup, disposable detection, and more - all in under 300ms.
Act on the Result
Clear action recommendations: accept, reject, or flag for review. No guesswork.
API Features
Everything you need for comprehensive email validation.
Real-Time SMTP Verification
Connect directly to mail servers to confirm the mailbox exists. Not just format or MX checks.
Disposable Email Detection
Block 100,000+ temporary email domains. Stop throwaway signups before they waste resources.
Bulk Email Validation
Upload CSV/Excel files with up to 100,000 emails. Async processing with real-time progress.
Webhook Notifications
Get notified when bulk jobs complete. HMAC-SHA256 signed payloads for security.
Suppression Lists
Maintain custom block/allow lists. Match by email, domain, or MD5 hash.
Validation Policies
Custom rules for automatic accept/reject decisions. Tailor validation to your use case.
See It In Action
Test our validation with real SMTP verification. No signup required.
Integrate in Minutes
Official SDKs for 11 languages. Enterprise clients include retry, typed errors, and webhook verification.
Why Developers Choose MailOdds
| Criteria | MailOdds | Typical Providers |
|---|---|---|
| Response Time | <300ms | 300-500ms typical |
| Data Location | EU (Germany) | Usually US-based |
| Free Tier | 1,000/month forever | Often trial-only |
| Entry Pricing | From EUR 9/month | Often €20+ for entry |
| API Simplicity | 1 endpoint, clean JSON | Multiple endpoints, SDKs required |
| Credit Expiration | Never | Often 12 months |
Transparent Pricing
Start free. Scale as you grow. No hidden fees.
Frequently Asked Questions
Ready to validate your email list?
Start with 1,000 free validations. No credit card required. Setup takes 2 minutes.