Email Verification & List Cleaning

Clean List = better deliverability, stronger reputation, higher revenue.

Listclean verifies your contacts with AI-powered validation + live SMTP checks, helping you maintain high deliverability and keep your emails out of spam.

We eliminate:

Invalid & undeliverable emails

Bots, spam traps, abuse emails

Disposable & fake signups

Catch-all & risky domains

30+ harmful email types & risk categories

No charges for unknown results — pay only for verified outcomes.

4.9/5 average rating | Used by 1,000+ users worldwide

Loved by marketers, founders & CRM teams

Test our email verification and see the results!

Experience the speed and accuracy - simply type it in and get the result in seconds!

How to validate your email lists with ListClean

Clean your lists with email verification in three simple steps. Improve inbox placement, reduce bounces, and protect your sender reputation.

STEP 1

Create your account

Sign up and access the ListClean dashboard for fast, accurate email verification.

STEP 2

Upload your email list

Import CSV/XLSX or use the API. ListClean runs multi-layer email verification to detect invalid, disposable, role-based, and risky addresses.

STEP 3

Download your clean list

Export a clean email list with clear statuses and start sending with confidence.

Try ListClean for Email Verification
Works with bulk lists & real-time forms • Privacy-first email verification

Fully equipped email verification solutions

ListClean combines multi-layer checks to reduce bounces, protect sender reputation, and keep your lists clean—built for speed, accuracy, and scale.

Detects Spam Traps

Precision trap detection for safer email verification

Identify and suppress known and probable spam-trap signals before you send to protect deliverability.

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Hard Bounce Detection

Eliminate invalid mailboxes with layered checks

Syntactic, domain, and mailbox existence checks reduce hard bounces and keep reputation intact.

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Abuse & Complainer Flags

Suppress chronic complainers detected in email verification

Shield campaigns from users who frequently mark messages as spam and trigger filters.

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Toxic Domain Screening

Filter domains linked to abuse and spam

We down-rank domains tied to bot signups, spam farms, and known abuse ecosystems.

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Invalid Syntax

RFC-compliant parsing in email verification

Catch typos, bad characters, and malformed addresses before they enter your CRM.

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Disposable Email Filters

Stop temporary mailboxes at the source

Block short-lived aliases commonly used for sign-ups without intent to engage.

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Role-Based Email Detection

Identify addresses like sales@ and info@

Reduce complaints by suppressing shared mailboxes with low engagement signals.

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Catch-All Handling

Smarter scoring for accept-all domains

Distinguish likely-valid mailboxes from blanket accept-all responses using probabilistic signals.

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MX & MTA Validation

Deep server checks within email verification

Validate routing readiness with MX lookups, rDNS, and real-time SMTP dialogues where permissible.

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Fast, reliable email verification without sacrificing accuracy

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

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.

Separate the Good Emails from the Bad — Automatically

Protect your sender reputation. Reduce bounces. Boost deliverability.

Free Access • No credit card required • Privacy-safe