Verify email addresses in real-time. Reduce bounce rates by 95%. Protect your sender reputation.
Free plan includes 5,000 verifications • No credit card required
99.9%
Accuracy Rate
<500ms
Response Time
8
Validation Checks
24/7
API Uptime
Advanced email verification that goes beyond basic syntax checking
Industry-leading accuracy with real-time email verification against live mail servers
Average response time under 500ms. Verify emails instantly without slowing down your app
Eliminate invalid emails before sending. Protect your sender reputation and improve deliverability
Identify temporary and disposable email addresses to prevent fake signups and fraud
Every email goes through multiple validation layers for maximum accuracy
Verifies email follows proper RFC 5322 format
Checks if domain exists and has valid MX records
Confirms the email address exists on the mail server
Identifies temporary and disposable email services
Flags role-based emails like admin@, support@, info@
Catches common typos and suggests corrections
Identifies free email providers (Gmail, Yahoo, etc.)
Detects catch-all domains that accept all emails
Start verifying emails with just a few lines of code
const verifyEmail = async (email) => {
const response = await fetch(
`https://api.mailapi.dev/v1/verify?email=${encodeURIComponent(email)}`,
{
headers: {
'Authorization': 'Bearer YOUR_API_KEY'
}
}
);
const data = await response.json();
if (data.valid) {
console.log('✅ Valid email!');
console.log('Deliverable:', data.validators.is_deliverable);
console.log('Disposable:', data.validators.is_disposable);
}
return data;
};
// Verify an email
verifyEmail('user@example.com');From startups to enterprises, our email verifier works for all industries
Validate emails during signup to prevent fake accounts and improve user quality
Clean your email lists before campaigns to reduce bounce rates and protect sender reputation
Verify lead quality by ensuring contact information is valid and deliverable
Validate customer emails at checkout to ensure order confirmations reach customers
Detect disposable and temporary emails often used for fraudulent activities
Keep your CRM clean by validating emails before import and during data entry
Free plan includes 5,000 email verifications. No credit card required.
Join 10,000+ developers using MailApi.dev
Our email verifier achieves 99.9% accuracy by performing real-time checks against live mail servers, validating syntax, checking MX records, and detecting disposable emails.
Validation checks email syntax and format, while verification goes deeper by checking if the email actually exists on the mail server and can receive emails.
Yes! You can verify emails in bulk using our API. Process up to 1 email per second on free/basic plans, or upgrade to Pro/Master for faster bulk verification.
Email verification costs 3 credits per email. Free plan includes 5,000 verifications. See our pricing page for paid plans.
We only store verification results temporarily for caching. We never sell or share your data. Your verified emails remain private and secure.