Popular domain lists (Gmail, Google Workspace, Outlook, etc.)
Up to 90% faster than complex domains with ListClean’s optimized email verification pipeline.
250K
Under 15 min
1M
Under 60 min
Personalised demo
What to expect from your
Listclean walkthrough
1
Fast discovery call
We spend a few minutes understanding your verification needs, bounce issues, and volumes.
2
Product walkthrough
A calm, guided demo of bulk verification, API validation, reporting, and accuracy checks.
3
SaaS use cases
See exactly how teams like yours reduce bounces and improve inbox placement.
4
Personalized strategy
Leave with clear recommendations for list hygiene, sending patterns, and deliverability.
Loved by marketers, founders & CRM teams worldwide
Fast, reliable email verification without sacrificing accuracy
Mixed or complex domain lists
Robust, multi-layer email verification for lesser-known domains, catch-alls, and stricter servers.
250K
2.5 hours or less
1M
6 hours or less
We give less popular domains a thorough examination, so you’re never stuck with “unknown” results. Times are estimates based on typical ListClean email verification runs.
Email Verification FAQs
Learn everything you need to know about ListClean’s Email Verification - accuracy, credits, bulk uploads, API validation, and data privacy.
Email verification confirms whether an email address is valid, reachable, and safe to send to. ListClean’s Email Verification engine checks syntax, MX, SMTP responses, and risk signals to remove invalid, disposable, and spam-trap-prone addresses.
Use bulk verification to upload a CSV list, or validate emails in real-time using the API. ListClean identifies Valid, Invalid, Catch-all, Disposable, Role-based, and other risky email types to keep your sender reputation safe.
Invalid and harmful emails trigger bounces and spam complaints. Email verification removes toxic addresses, improves deliverability, boosts inbox placement, and protects your domain reputation.
ListClean uses advanced SMTP logic, DNS/MX checks, and intelligent risk scoring to maximize accuracy for both bulk and real-time verification.
Yes — try our Free Email Verifier for single checks. Paid plans unlock bulk list uploads and the real-time API.
We only process what’s required to evaluate deliverability (email address + mail-server responses). ListClean is privacy-first and secure.
Every email you verify — either in bulk or real-time — uses one credit. Credits act as tokens to access ListClean’s advanced Email Verification technology that improves deliverability and engagement rates.
Yes. Upload your TXT/CSV file with multiple columns — ListClean detects the email column automatically. After verification, you’ll get a file containing your original columns + verification results.
No — ListClean credits never expire. Purchased and promotional credits stay in your account forever. Use them whenever you want.
Processing speed depends on list size and data quality. ListClean averages 100,000 emails per hour per customer — and can scale higher for larger datasets.
Yes. ListClean never shares data with third parties and keeps all files securely in your dashboard (you can delete anytime). We follow enterprise-grade security standards.
No — ListClean never charges for “unknown” results. We also don’t charge credits for removing duplicate email addresses. You only pay for verifiable outcomes.