Verify Email Leads with Confidence

Improve your email marketing campaigns with accurate data. Our powerful verification service helps you reduce bounce rates and improve deliverability.

Get Started Free How It Works

Trusted by businesses worldwide

Our email verification service helps businesses improve their email marketing performance.

Emails Verified: 100M+
Accuracy Rate: 99.8%
Happy Customers: 5,000+

A better way to verify email addresses

Our comprehensive verification process ensures you're only sending emails to valid addresses.

Real-time verification

Verify email addresses in real-time with our advanced algorithms. Get instant results and improve your email deliverability.

Syntax validation: Check if the email follows proper format and structure.
Domain validation: Verify that the domain exists and can receive mail.
Mailbox verification: Check if the specific email address exists on the mail server.


                                    POST /api/verify

                                    Content-Type: application/json

                                    X-API-Key: YOUR_API_KEY


                                    {

                                      "email": "example@domain.com"

                                    }


                                    {

                                      "email": "example@domain.com",

                                      "status": "valid",

                                      "verified_at": "2025-04-20T12:34:56.789Z",

                                      "remaining_credits": 99

                                    }

Bulk verification for large lists

Upload CSV files to verify thousands of email addresses at once. Perfect for cleaning your existing email lists.

CSV upload: Upload your CSV file with email addresses and get results in minutes.
Downloadable results: Download verification results in CSV format for easy integration.
Fast processing: Our system can process thousands of emails in minutes.

Bulk Email Verification

Upload your CSV file with email addresses

Drag and drop your CSV file here, or click to browse

CSV file should include an "email" column

Processing 60%

Integrate with our API

Add email verification to your applications with our simple and powerful API.

Get Your API Key

Ready to get started?

What you'll get:

100 free email verifications
Access to our API
Bulk verification tools
Detailed verification reports
Email deliverability insights

Loved by marketers & SaaS founders

See what our customers have to say about our email verification service.

"ValidateLeads has helped us improve our email deliverability by over 30%. Their API is easy to integrate and the results are highly accurate."

John Doe

Marketing Director, TechCorp

"We've been using ValidateLeads for our email list cleaning and it's been a game-changer. The bulk verification feature saves us hours of work."

Jane Smith

Email Manager, E-Commerce Plus

"The API is reliable and fast. We've integrated it into our CRM system and now all new leads are automatically verified before entering our sales pipeline."

Robert Johnson

CTO, SaaS Solutions

How does email verification work?

We use a secure method to check directly with the email server. No email is sent to verify addresses.

1. Valid format

We check that the address has no typos or missing parts (e.g. name@domain.com).

2. Deliverable

We confirm the domain exists and can receive mail. Temporary or disposable domains are flagged.

3. Active mailbox

We confirm the mailbox is valid and reachable. We filter out invalid and risky addresses. We don't send any emails to verify.

See how our email checker works (checks and verification outcomes).

Ready to improve your email marketing?

Start verifying your email lists today and see the difference in your campaign performance.

Get Started Free View API Docs