The Ultimate Guide to Email Verification & List Cleaning
Turn risky, decaying contact data into a clean, revenue-ready pipeline with the ultimate guide to email list hygiene.
The #1 Email Verification Service
Protect your email reputation
The most comprehensive email verification service with 99%+ accuracy, the lowest prices, and a real 100% money-back guarantee for risky emails.
Takes less than 1 minute · No credit card required · 100 free credits
★★★★★
4.6 / 5 · Trusted by 70,000+ businesses
Seamless 1-click integrations for
Mailchimp
HubSpot
ActiveCampaign
Mailgun
Mailjet
Constant Contact
MailerLite
Built for every email verification need
Four ways MillionVerifier protects your sender reputation and saves your marketing budget.
Clean Old Email Lists
Haven't emailed your list in 2+ months? Verify before you send to protect your domain reputation.
Verify old emails »Verify New Emails in Real-Time
Catch typos and fakes at the signup form with our sub-second REST API.
See the API »Block Temporary / Disposable Emails
Stop fraud, abuse, and throwaway signups. Detect temporary and role-based addresses.
How it works »Keep Email Marketing Account Ever Clean
EverClean verifies new contacts every day inside your Mailchimp, HubSpot, or ActiveCampaign account.
Meet EverClean »One platform, every verification workflow
From single-email checks to daily automation across your entire email marketing stack.
Email Checker
Verify a single email in real time, free. Perfect for support teams and sales reps.
Email List Verification
Upload a CSV, TXT, or XLSX and get a fully cleaned list in minutes.
Bulk Email Verifier
Verify millions of addresses fast with enterprise-grade infrastructure.
Email Verifier API
REST API with global low-latency endpoints and generous rate limits.
EverClean
Set it once. We verify every new subscriber in your ESP, every single day.
The most reliable email verification service
Industry-leading accuracy at prices nobody else can match — with a no-questions-asked refund.
99%+ Accuracy Rate
Verified against billions of real-world sends. Independent tests rank us #1.
Best Prices, Guaranteed
1 Million verifications for $449. Credits never expire, and bulk discounts stack.
Risky Email Refund
Full refund on any email we can't verify with certainty. Only we offer this.
Catch-All Included
Advanced catch-all verification at no extra cost. Detect and handle them effectively.
40+ Integrations
Connect Mailchimp, HubSpot, ActiveCampaign, SendGrid, and more in one click.
Free EmailAcademy PRO
Every MV user gets lifetime access to EmailAcademy's full deliverability curriculum.
Human Support, Fast
Real humans respond in under an hour, weekdays or weekends.
GDPR Compliant
We never sell or use your data. Sign our DPA on every plan, including free.
Simple pricing that scales with you
Pick a volume, pick a plan. No contracts. No expiry. No gotchas.
Pay as you go
Verification Credits
Buy credits once. Use them forever — they never expire.
- Email Checker (single)
- Email List Verification (CSV)
- Bulk Verifier
- Email Verifier API
- ESP integrations import
- Risky email refund
Only $89
$0.00178 per credit
100% money-back guarantee · Credits never expire · Volume pricing available above 50M
What people say about us
Rated 4.6 / 5 by 70,000+ businesses.
★★★★★
"MillionVerifier saved us thousands in marketing costs. The accuracy is incredible and the refund policy for risky emails is a game-changer."
★★★★★
"I just verified over 300K email addresses. Results came back fast and the bounce rate dropped from 7% to under 1%."
★★★★★
"Never send email to a list without checking the emails here first. The interface is simple and the support is excellent."
★★★★★
"In my experience this is the most accurate email database verification tool on the market. Nothing else comes close."
★★★★★
"Very easy to use, highly recommended. The API saved our signup form from thousands of fake accounts."
★★★★★
"Value for money. Accurate results. Would use again, and have recommended MV to three other companies."
40+ ready-to-use integrations
Connect MillionVerifier to your email marketing stack in one click. No CSV exports, no manual uploads.
Mailchimp
Mailgun
Mailjet
Elastic Email
Campaign Monitor
Active Campaign
Zoho CRM
Reply
Getresponse
Hubspot
AWeber
MailerLite
Drip
SendGrid
Custom App
Intercom
Pipedrive
Constant Contact
Sendy
Smartlead
Omnisend
Freshsales
Acellemail
Mailwizz
Sendlane
Snov.io
Claritysoft
Klenty
ConvertKit
iContact
SendPulse
Salesflare
Insightly
Agile CRM
EmailOctopus
AutoKlose
VerticalResponse
CleverReach
Zendesk
BombBomb
Email deliverability, decoded
Playbooks and case studies from the MillionVerifier team.
Ready when you are
Clean up your list in under a minute
Create a free account, get 100 verification credits, and see why 70,000+ businesses trust MillionVerifier with their email reputation.
- No credit card required
- GDPR compliant
- Cancel anytime
- 100 free credits