
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.
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.

DeBounce email list cleaning service allows you to upload and verify lists of email addresses quickly and securely without sending emails
We'll clean your list by detecting invalid, spammy or non-operational mailboxes.
We make sure that no one on your list receives an unsolicited email during validation.
The result is a clean email list you can use effectively in your marketing campaign.
Type an email address and DeBounce tries to validate it.
Remove invalid and hard bounce email addresses from your database using an SMTP check.
Checks to see if an email address from a disposable email provider, such as Mailinator exist.
DeBounce bulk email verifier can identify catch-all domains, which return valid for all emails.
Using a bulk email checker, email addresses with invalid syntax are immediately removed from your mailing list.
Simulate a well configured email engine to reduce the number of unknowns.
If enabled, all duplicate email addresses are removed automatically.
DeBounce API allows you to verify email addresses instantly on your platform.
DeBounce App allows you to only download the results you want.
All records of spam are removed thanks to our intelligent Spam-Trap Indicators.
Add all your team members to one DeBounce account and consume the same source of credits.
The email addresses containing inactive, invalid or parked Domains are removed.
Checks the Email Transfer Agent to identify whether or not it has a valid MX record.
Join thousands of businesses that trust DeBounce to keep their email lists clean and their campaigns successful
















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

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

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

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

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

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

See real data on how businesses increased their email marketing ROI by up to 300% through proper email validation.
Integrate email validation into your application with our RESTful API. No account needed to start exploring our documentation.
Validate individual email addresses in real-time with instant response.
Validate multiple emails at once with asynchronous processing.
Upload CSV files directly and download clean results.
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
}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"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.csvSimple HTTP requests with JSON responses
Fair usage with configurable limits
Get notified when jobs complete
100 free credits • No credit card required
Email exists and can receive messages
Email doesn't exist or can't receive mail
Domain accepts all emails (risky)
Unable to verify (server timeout)
Temporary email service detected
Known spam trap address
Suggested correction for typos
Domain has valid mail servers
Choose the plan that fits your needs. All plans include a 14-day free trial.
Perfect for small businesses
For growing companies
Sign up and get 100 free credits, as well as the opportunity to test our list cleaning and API capabilities.