Email List Cleaning & Verification Service

99.2% verification accuracy · live SMTP validation

High-Accuracy Email Verification & List Cleaning

Safeguard your sender reputation, eliminate hard bounces, and reach the inbox every time with our 99%+ accurate email hygiene engine. Plans start at transparent pay-as-you-go and volume rates.

99.2% Accuracy Rate GDPR Compliant 10,000 emails / minute
Upload your list
First 100 free
Drag & drop your CSV, TXT or XLSX
or click to browse · up to 5,000,000 rows per file
list.csv · ready to verify
256-bit encrypted transfer · auto-purged after your retention window
Start Verification
Live validation pipeline
sarah.chen@acmecorp.com Valid
Syntax & format check2ms
MX record lookup14ms
SMTP mailbox ping38ms
Spam trap & disposable filter6ms
Throughput10,000 emails / min
Pricing

Simple, Transparent Email Cleaning Plans

Scale your deliverability with predictable monthly packages and volume-based pricing designed for businesses at every stage.

List volume
250,000 emails
One-time price
$100
Effective $0.40 per 1,000 emails
250K500K1M2M
Clean 250,000 Emails — $100 Pay as you go. No subscription required. Volume discounts applied automatically.
Starter
Small businesses & startups
50,000emails cleaned per month
  • Standard validation & reporting
  • Bounce, spam trap & disposable removal
  • Email support
  • Standard accuracy SLA
Get Started
Most popular
Professional
Growing marketing teams
250,000emails cleaned per month
  • Everything in Starter
  • API access + dashboard analytics
  • Deliverability consulting
  • Priority email support
  • High-speed processing lane
Start Free Trial
Enterprise
Large-scale operations
Unlimitedcustom volume & contract
  • Everything in Professional
  • Dedicated account manager
  • Custom integrations
  • 24/7 dedicated support
  • SLA-backed uptime guarantee
Contact Sales

Pay-as-you-go & high-volume pricing

Transparent volume pricing for flexible list cleanup needs. No contracts, no credit expiry.

Email volumeTotal priceEffective cost per 1,000
250,000 emails$100$0.40 / 1k
500,000 emails$180$0.36 / 1k
1,000,000 emails$350$0.35 / 1k Best rate
2,000,000 emails$720$0.36 / 1k
Validation engine

How Our Engine Protects Your Inbox

Every address runs through a multi-stage verification pipeline before it ever reaches your sending platform.

Syntax & format check

Instantly drops malformed addresses — missing @ symbols, illegal characters, broken TLDs and typo domains like @gmai.com.

Spam trap & honeypot detection

Identifies addresses seeded by ISPs and blocklist operators specifically to catch senders mailing unverified lists.

Disposable email filter

Flags temporary and burner services such as TempMail and GuerrillaMail before they inflate your list and tank engagement.

Real-time SMTP ping

Checks mailbox existence at the receiving server without ever sending an actual email — zero risk to your domain.

Catch-all & MX verification

Pinpoints server responses to isolate catch-all and risky domains, so you can segment them instead of blindly mailing them.

Role & complainer suppression

Strips role accounts and known complainer addresses that generate abuse reports and drag your sender score down.

AI engine

Automation That Thinks Ahead of Your Send

Machine learning layered on top of raw verification — so you know how a campaign will land before you launch it.

Dynamic bounce prediction

Machine learning models analyze domain health to predict deliverability scores before your campaigns launch.

Automated list repair

Generates suggested fixes for common typo domains — auto-correcting john@gmial.com to john@gmail.com instead of discarding a real subscriber.

AI deliverability consultant

Built into the Professional and Enterprise dashboard, giving actionable guidance on email copy and DNS setup — SPF, DKIM and DMARC.

99.2%Verification accuracy
10KEmails per minute
$0.35Lowest cost per 1,000
256-bitEnd-to-end encryption
FAQ

Questions, Answered

Why do I need to clean my email list?
Sending emails to invalid addresses leads to high bounce rates, which flags your domain with ISPs such as Gmail, Outlook and Yahoo and lands your emails in the spam folder. Cleaning first protects the sender reputation you have spent years building.
How much does high-volume list cleaning cost?
Our pricing scales flexibly with your volume: 250,000 emails costs $100, 500,000 emails costs $180, 1,000,000 emails costs $350, and 2,000,000 emails costs $720. Larger volumes are quoted on request.
How fast is the cleaning process?
Our parallel processing engine verifies up to 10,000 emails per minute with zero system downtime. A 250,000-record list typically finishes in well under half an hour.
Is my subscriber data secure?
Yes. EmailListClean.com uses end-to-end 256-bit encryption and is fully GDPR and CCPA compliant. Your list data is never shared or sold, and it is purged automatically beyond your retention window.
What file formats can I upload?
CSV, TXT, TSV and XLSX. Upload the raw export from your CRM or ESP — we detect the email column automatically and return your file with the original columns intact, plus a verification status for every row.
Do you have an API?
Yes. Real-time single-address verification and bulk batch endpoints are included on the Professional and Enterprise plans, so you can validate at the point of signup and stop bad addresses from entering your list in the first place.
Deliverability guides

Everything We Know About Reaching the Inbox

Plain explanations of the rules mailbox providers actually enforce, and the list hygiene that keeps you on the right side of them.

Stop paying to email addresses that do not exist.

Run your list through the engine, see exactly what is dead, risky and deliverable, and get back to campaigns that actually land in the inbox.

No card required for your first 100 verifications · GDPR & CCPA compliant · 99.2% accuracy