Trusted by 10,000+ businesses
Simple, Fast
Email Validation Service
Remove fake, invalid, and risky email addresses from your lists. Improve deliverability and protect your sender reputation.
GDPR Compliant
99.99% Availability
Real-time API
Includes 50 free validations — no credit card required
Deliverable
95
Valid format
MX records found
SMTP verified
Not disposable
No role account
Free provider
Or instead Upload a list
Loved by developers and marketers
Sarah Chen
2 weeks ago
CheckMail reduced our bounce rate by 80%. The API integration took less than 10 minutes. Absolutely essential for our marketing stack.
James Morrison
1 month ago
We process 50k signups daily. CheckMail catches fake emails in real-time and has saved us thousands in wasted campaign spend.
Emily Rodriguez
3 weeks ago
Switched from a competitor and the accuracy improvement was immediately noticeable. The batch upload feature is incredibly fast.
David Park
1 week ago
The GDPR compliance features gave our legal team peace of mind. Great documentation and the support team is incredibly responsive.
Maria Gonzalez
5 days ago
Best email verification service we have used. The pricing is fair and the unlimited plan is a game-changer for high-volume senders.
Alex Thompson
2 months ago
Integrated CheckMail into our signup flow and bot registrations dropped by 95%. The ROI paid for itself within the first week.
Sarah Chen
2 weeks ago
CheckMail reduced our bounce rate by 80%. The API integration took less than 10 minutes. Absolutely essential for our marketing stack.
James Morrison
1 month ago
We process 50k signups daily. CheckMail catches fake emails in real-time and has saved us thousands in wasted campaign spend.
Emily Rodriguez
3 weeks ago
Switched from a competitor and the accuracy improvement was immediately noticeable. The batch upload feature is incredibly fast.
David Park
1 week ago
The GDPR compliance features gave our legal team peace of mind. Great documentation and the support team is incredibly responsive.
Maria Gonzalez
5 days ago
Best email verification service we have used. The pricing is fair and the unlimited plan is a game-changer for high-volume senders.
Alex Thompson
2 months ago
Integrated CheckMail into our signup flow and bot registrations dropped by 95%. The ROI paid for itself within the first week.
What does CheckMail exactly do?
A comprehensive suite of email verification checks to keep your lists clean and your reputation intact.
Format Check
Validates email syntax, checks for typos in common domains, and catches formatting errors before they cause bounces.
Delivery Check
Connects to the mail server via SMTP to verify the mailbox exists and can receive email, without sending a single message.
Email Profiling
Identifies free providers, role-based accounts, disposable addresses, and catch-all domains for smarter segmentation.
Blocklists
Cross-references emails against known spam traps, complainers, and blocklists to protect your sender score.
No-code & API
Use our dashboard for manual checks or integrate our REST API into your app. Webhooks and Zapier support included.
Mailing Lists
Upload CSV or TXT files with up to 1M emails. Get cleaned results with detailed reports in minutes, not hours.
30%
of online signups use fake emails
22.5%
of email lists decay every year
98.7%
accuracy rate on verification
Built for every use case
Whether you are a marketer, developer, or security team, CheckMail has you covered.
Email Marketing
Clean your lists before campaigns to boost open rates, reduce bounces, and protect your domain reputation with every send.
Bot Signup Prevention
Verify emails at the point of registration to block bots, disposable addresses, and fake accounts from polluting your user base.
Fraud Detection
Identify high-risk email patterns, detect disposable and temporary addresses, and flag suspicious signups before they cause damage.
Get started with 90% off your first month
Simple, transparent pricing
All paid plans include API access and list validation
Pro
For small teams
$48/mo
$4.80/mo 90% off
- Enable list validation
- 10,000 validations/month
- $0.005 per extra validation
- REST API access
- CSV upload
Most popular
Business
For growing businesses
$98/mo
$9.80/mo 90% off
- Enable list validation
- 50,000 validations/month
- $0.002 per extra validation
- REST API access
- Priority support
Unlimited
For power users
$980/mo
$98/mo 90% off
- Enable list validation
- Unlimited validations
- No overage charges
- REST API access
- Dedicated support
Enterprise
For large organizations
$1,899/mo
- Enable list validation
- Unlimited validations
- 99.99% Guaranteed Uptime SLA
- Priority support
- Dedicated account manager
Frequently asked questions
Everything you need to know about CheckMail
Yes, you can cancel your subscription at any time from your dashboard. Your access will continue until the end of your current billing period. No cancellation fees, ever.
Absolutely. You can upgrade or downgrade your plan at any time. When upgrading, you will be prorated for the remainder of your billing cycle. Downgrades take effect at the next billing date.
Every new account gets 50 free email validations. This lets you test our service with real data before committing to a paid plan. No credit card required to sign up.
Yes, our Unlimited plan truly has no cap on the number of verifications. It is designed for high-volume users who need consistent, predictable pricing without worrying about overage charges.