Verify Emails with AI Precision
Our email verifier goes beyond basic SMTP checks. AI-powered verification delivers 98%+ accuracy with confidence scoring for catch-all domains — no more "unknown" results.
How Email Verification Works
Syntax Check
Validates email format, local part rules, and domain structure.
DNS & MX Lookup
Confirms the domain exists and has valid mail exchange records.
SMTP Verification
Connects to the mail server to confirm the specific mailbox exists.
AI Analysis
Catch-all scoring, pattern recognition, and domain reputation intelligence.
Why Choose Our Email Verifier
Catch-All Confidence Scoring
Get a 0-100 probability score for catch-all emails instead of useless "unknown" results. Scores above 80 are safe to email.
AI Pattern Recognition
Our AI learns email patterns across companies and predicts likely valid addresses even on difficult domains.
Domain Reputation
Trust scoring for email domains helps you identify risky senders before they damage your deliverability.
Real-Time API
Verify emails at the point of collection with our REST API. Sub-2-second response times for signup forms.
Bulk Verification
Upload CSV files and verify thousands of emails at once. Download clean, categorized results.
Built-in Email Finder
Find and verify emails in one platform. No separate subscriptions needed.
Verify Emails by Provider
Provider-specific verification strategies for maximum accuracy:
Email Verifier FAQ
What is an email verifier?
An email verifier is a tool that checks whether an email address exists, is deliverable, and is safe to send to. It validates syntax, DNS records, SMTP responses, and uses AI to score catch-all domains — all without sending any actual email.
How accurate is ZeroBounce AI's email verifier?
ZeroBounce AI achieves 98.3%+ accuracy on standard domains. For Gmail, accuracy is 99.2%. For catch-all domains (~30% of business emails), our AI confidence scoring provides a 0-100 probability score instead of "unknown."
Can I verify emails without sending a message?
Yes. Email verification connects to the mail server at the SMTP protocol level to confirm the mailbox exists. No email is ever sent to the address being verified.
How is this different from other email verifiers?
Most verifiers give you binary results (valid/invalid) and return "unknown" for catch-all domains. ZeroBounce AI adds AI confidence scoring, pattern recognition, and domain intelligence — turning "unknowns" into actionable data.
Verify Your First Email Free
100 free verifications. No credit card required. AI-powered results in seconds.