1
Seven-layer verification
for maximum accuracy
From syntax validation to spam trap detection, our comprehensive verification engine ensures every email address is thoroughly checked before it reaches your list.
Simple Process
Four steps to clean lists
Upload your list, let our verification engine analyze every address, review detailed results, and export a clean, deliverable list in minutes.
Upload
Upload CSV, TXT, or connect via API. We handle lists of any size, from hundreds to millions.
2
Verify
Our seven-layer verification engine analyzes every address in real-time with 98.5% accuracy.
3
Review
See detailed status codes, bounce predictions, and risk scores for every single email address.
4
Export
Download your clean list with all original columns intact, ready for your email campaigns.
Seven-Layer Verification
Technical checks + strategic insights
Six technical validation layers analyze individual emails, while the seventh layer provides AI-powered strategic assessment of your entire list quality.
Technical Verification
Seven-Layer Verification Engine
Individual email checks that catch invalid addresses
Validates email format against RFC standards to catch:
- Typos and malformed addresses
- Missing @ symbols or invalid characters
- Incorrect domain structures
- Special character violations
Confirms the domain is real and active by validating:
- Domain registration status
- DNS record existence
- Domain authority and age
- Active hosting status
Verifies mail exchange records to ensure:
- MX records are properly configured
- Mail servers are reachable
- Priority routing is set correctly
- Server reputation is clean
Pings the actual mail server to verify:
- Specific mailbox exists on server
- Mailbox is accepting mail
- No full mailbox errors
- Server response is valid
Identifies addresses that damage sender reputation:
- Known spam trap addresses
- Honeypot email addresses
- Seeded monitoring addresses
- Blacklist-triggering contacts
Analyzes email quality factors including:
- Disposable email detection
- Role-based address identification (info@, admin@)
- Catch-all domain flagging
- Historical engagement patterns
Strategic Assessment
AI-powered insights
Overall list quality analysis
Our AI engine analyzes all verification results to provide strategic insights unique to your list:
Quantifies bounce and reputation risk before you hit send
Shows exactly what percentage is immediately deliverable
Breaks down contacts by deliverability tier for targeted segmentation
Smart guidance on which segments to send, suppress, or verify again
Why Verification Matters
The cost of unverified lists
Sending to unverified email addresses doesn't just waste money it actively damages your sender reputation and deliverability rates.
Reputation Damage
High bounce rates signal poor list quality to mailbox providers, triggering spam filters and permanently damaging your domain reputation.
- SMTP verification pings actual servers
- 98.5% accuracy before you send
- Real-time mailbox validation
Blacklist Risk
Spam traps and honeypots can blacklist your domain instantly, making it nearly impossible to reach real inboxes across all campaigns.
- Updated trap databases maintained daily
- Behavioral pattern analysis
- Suspicious address identification
Resource Waste
Catch-all domains and role-based addresses lead to low engagement rates, wasted sending costs, and diluted campaign metrics.
- Intelligent quality scoring flags risks
- Catch-all domain identification
- Disposable email detection
By The Numbers
Built for speed and scale
500K
98.5%
<2s
24/7
Developer-Friendly
Simple API integration
Integrate real-time verification into your application with just a few lines of code. Full documentation and client libraries available.
Security & Compliance
Your data is safe with us
We never share your data with third parties. All verification happens on our secure infrastructure with enterprise-grade encryption.
Type II
Compliant
Certified
Encryption
Ready to see it in action?
Get 25 free verification credits. No credit card required.