Email Validation Tool; Simple, Fast & Accurate.

Don't let bounce, disposable, spam-trap and deactivated emails decrease your sending reputation, waste your time and money. 30% of emails go bad in just one year.

For Free. No Credit Card is Required. From $0.0003 per check.

★★★★★4.9/5 - Excellent
|1,500+ reviews

How It Works

DeBounce email list cleaning service allows you to upload and verify lists of email addresses quickly and securely without sending emails

-

Upload Your List

We'll clean your list by detecting invalid, spammy or non-operational mailboxes.

-

We Validate Safely

We make sure that no one on your list receives an unsolicited email during validation.

-

Get Clean Results

The result is a clean email list you can use effectively in your marketing campaign.

Test Your Email and See How it Works!

Type an email address and DeBounce tries to validate it.

Features That Make Your List Clean!

Minimize Bouncing

Remove invalid and hard bounce email addresses from your database using an SMTP check.

Disposable Email Checker

Checks to see if an email address from a disposable email provider, such as Mailinator exist.

Catch-All Domain Checker

DeBounce bulk email verifier can identify catch-all domains, which return valid for all emails.

Syntax Eliminator

Using a bulk email checker, email addresses with invalid syntax are immediately removed from your mailing list.

Anti-greylisting Technology

Simulate a well configured email engine to reduce the number of unknowns.

Email Deduplication

If enabled, all duplicate email addresses are removed automatically.

Email Verification API

DeBounce API allows you to verify email addresses instantly on your platform.

Selectable Download Options

DeBounce App allows you to only download the results you want.

Spam-trap Removal

All records of spam are removed thanks to our intelligent Spam-Trap Indicators.

Team Account

Add all your team members to one DeBounce account and consume the same source of credits.

Domain Confirmation

The email addresses containing inactive, invalid or parked Domains are removed.

MTA Validation

Checks the Email Transfer Agent to identify whether or not it has a valid MX record.

Trusted by Industry Leaders

Join thousands of businesses that trust DeBounce to keep their email lists clean and their campaigns successful

50B+
Emails Validated
100K+
Happy Customers
99.9%
Accuracy Rate
24/7
Support Available
MailchimpHubSpotSalesforceSendGridConstant ContactActiveCampaignKlaviyoIntercom
MailchimpHubSpotSalesforceSendGridConstant ContactActiveCampaignKlaviyoIntercom
"DeBounce has been a game-changer for our email marketing. Our delivery rates improved by 40% and we've saved thousands on wasted sends. The ROI speaks for itself."
JD
John Davis
Marketing Director, TechCorp

Simple Steps

1

Upload

Upload your email list in a TXT or CSV format, then wait for the application to process your list. You can select to keep or remove the duplicated rows or choose to enrich your results or not.

2

Process

Our mass email checker begins processing to ensure that your list contains no bad emails. All syntax, spam-traps, bounce, catch-all and disposable emails will be identified.

3

Download

Once verified, you can download your cleaned list. The download section is flexible and you can customize the export file to suit your preferences. DeBounce allows you to separate all sections.

Email Validation Insights

Learn how email validation can transform your marketing campaigns and protect your sender reputation

Why Email Validation is Critical for Your Marketing Success
Best Practices5 min read

Why Email Validation is Critical for Your Marketing Success

Discover how email validation can dramatically improve your delivery rates and ROI. Learn the hidden costs of invalid emails.

Nov 10, 2024Read More →
The Real Cost of Email Bounces: What Businesses Need to Know
Business4 min read

The Real Cost of Email Bounces: What Businesses Need to Know

Email bounces can damage your sender reputation and waste your budget. Find out how much invalid emails are really costing you.

Nov 5, 2024Read More →
How to Protect Your Sender Reputation with Email Validation
Technical6 min read

How to Protect Your Sender Reputation with Email Validation

Your sender reputation determines whether your emails reach the inbox or spam folder. Learn how validation keeps you safe.

Oct 28, 2024Read More →
Email List Hygiene: A Complete Guide to Maintaining Clean Data
Guide7 min read

Email List Hygiene: A Complete Guide to Maintaining Clean Data

Maintaining a clean email list is essential for successful campaigns. Follow our comprehensive guide to list hygiene best practices.

Oct 20, 2024Read More →
Avoiding Spam Traps: The Ultimate Email Validation Strategy
Security5 min read

Avoiding Spam Traps: The Ultimate Email Validation Strategy

Spam traps can destroy your deliverability overnight. Learn how to identify and avoid them with proper email validation.

Oct 15, 2024Read More →
Maximizing ROI: How Email Validation Improves Campaign Performance
Case Study6 min read

Maximizing ROI: How Email Validation Improves Campaign Performance

See real data on how businesses increased their email marketing ROI by up to 300% through proper email validation.

Oct 8, 2024Read More →

Simple & Powerful API

Integrate email validation into your application with our RESTful API. No account needed to start exploring our documentation.

Single Validation

Validate individual email addresses in real-time with instant response.

POST /api/validate
⚡ Average response: ~200ms

Bulk Validation

Validate multiple emails at once with asynchronous processing.

POST /api/bulk-validate
📊 Up to 10M emails/batch

CSV Upload

Upload CSV files directly and download clean results.

POST /api/upload
📁 Support for TXT & CSV

Quick Start Examples

Single Email Validation

curl -X POST https://api.debounce.pro/v1/validate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "email": "user@example.com"
  }'

# Response
{
  "email": "user@example.com",
  "status": "valid",
  "did_you_mean": null,
  "account": "user",
  "domain": "example.com",
  "disposable": false,
  "spam_trap": false,
  "mx_records": true,
  "smtp_check": true,
  "validation_time": 0.18
}

Bulk Validation

curl -X POST https://api.debounce.pro/v1/bulk-validate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "emails": [
      "user1@example.com",
      "user2@example.com",
      "user3@example.com"
    ]
  }'

# Response
{
  "job_id": "job_abc123xyz",
  "status": "processing",
  "total_emails": 3,
  "estimated_time": 5
}

# Check status
curl -X GET https://api.debounce.pro/v1/bulk-validate/job_abc123xyz \
  -H "Authorization: Bearer YOUR_API_KEY"

CSV File Upload

curl -X POST https://api.debounce.pro/v1/upload \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@emails.csv" \
  -F "options[remove_duplicates]=true" \
  -F "options[return_format]=csv"

# Response
{
  "job_id": "upload_xyz789",
  "filename": "emails.csv",
  "total_rows": 10000,
  "status": "queued",
  "download_url": null
}

# Download results when ready
curl -X GET https://api.debounce.pro/v1/upload/upload_xyz789/download \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -o cleaned_emails.csv
RESTful API

Simple HTTP requests with JSON responses

Rate Limiting

Fair usage with configurable limits

Webhooks

Get notified when jobs complete

Get Your Free API Key

100 free credits • No credit card required

Response Fields Explained

Validation Status

  • valid

    Email exists and can receive messages

  • invalid

    Email doesn't exist or can't receive mail

  • catch-all

    Domain accepts all emails (risky)

  • unknown

    Unable to verify (server timeout)

Additional Checks

  • disposable

    Temporary email service detected

  • spam_trap

    Known spam trap address

  • did_you_mean

    Suggested correction for typos

  • mx_records

    Domain has valid mail servers

Simple, Transparent Pricing

Choose the plan that fits your needs. All plans include a 14-day free trial.

Starter

Perfect for small businesses

$40/month
  • 100,000 validations/month
  • Full API access
  • Bulk validation
  • Email support
  • 99.9% SLA
Start Free Trial
Most Popular

Pro

For growing companies

$100/month
  • 10,000,000 validations/month
  • Priority API access
  • Advanced analytics
  • Priority support
  • Custom integrations
  • Dedicated account manager
Start Free Trial

Get Started Today

Sign up and get 100 free credits, as well as the opportunity to test our list cleaning and API capabilities.