Upload your list and we will remove invalid, risky, and duplicate addresses automatically. Protect your sender reputation and improve deliverability with 99.9% accuracy.
Everything included in every plan
100 free checks daily
CSV, Excel, or TXT files
Catch hard bounces before sending
Real-time SMTP check
Full format verification
MX record and DNS lookup
Identify known traps
Direct mailbox connectivity
Better lists drive better results
Catch bounces before they damage your score
Maintain a clean sending reputation
Stop paying to email invalid addresses
Comprehensive multi-layer analysis
Addresses that will hard bounce
Spam traps and honeypots that hurt your reputation
Disposable, role-based, and temporary addresses
Exact matches, case variations, and aliases
Five automated steps
CSV, Excel, or TXT files accepted
AI identifies patterns and anomalies
Syntax, domain, and SMTP checks
Results sorted by deliverability
Download your cleaned list
Why choose BillionVerify for list cleaning?
| Feature | BillionVerify | Others |
|---|---|---|
| Free Tier | 100 daily free | Limited or none |
| Processing Speed | 50K emails/hour | 5K-10K emails/hour |
| Verification Accuracy | 99.9% accuracy | 90-95% accuracy |
| Spam Trap Detection | Included free | Extra cost |
Real results from real customers
Daily list cleaning for customer emails
Real-time verification at sign-up
Cleaning client lists before campaigns
Discover all our verification tools
List cleaning is the process of verifying every address on your email list and removing those that are invalid, risky, or duplicated. Each address goes through syntax validation, domain checks, MX record lookup, and SMTP verification to determine whether it is safe to send to.
Yes. You get 100 free verifications every day with no credit card required. The free tier includes all cleaning features β syntax, domain, SMTP, and disposable detection. Upgrade anytime for larger volumes.
We recommend cleaning your full list every 3 to 6 months, since roughly 20-30% of email addresses become invalid each year. For sign-up forms and lead capture, use real-time verification to keep new entries clean from the start.
We detect invalid addresses (syntax errors, dead domains, non-existent mailboxes), risky addresses (spam traps, honeypots, known complainers), low-quality addresses (disposable, role-based, temporary), and duplicates.
Most customers see a 70-90% reduction in bounce rates after cleaning. A typical list with a 15% bounce rate drops to under 2%. Real-time verification at sign-up prevents bad addresses from entering your list in the first place.
All data is encrypted with 256-bit SSL and we are fully GDPR and CCPA compliant. Email addresses are automatically deleted after processing. We never store or share your data with third parties.
Remove invalid and risky addresses automatically. Upload a file and download clean results in minutes β with 99.9% accuracy and a free tier to get started.