Email Verification for Cold Email
Send without getting blocked
20-40%
of cold email lists contain invalid addresses
2%
maximum bounce rate before reputation damage
98.4%
verification accuracy with SMTP checks
The Problem
Cold email lists decay fast. Prospect databases have 20-40% invalid addresses. Sending to these addresses causes hard bounces, triggers spam filters, and gets your domain blacklisted, killing deliverability for all your outreach.
The Solution
Verify every address before your first send. Mailthentic's 9-point verification confirms the mailbox exists without sending any email, catching invalid addresses before they damage your reputation.
Key Benefits
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Reduce bounce rates from 20%+ to under 2%
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Protect your domain from blacklists
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Improve inbox placement for verified addresses
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Detect catch-all domains that inflate your list
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Remove disposable and temporary addresses
Getting Started
Sign up for free
Create an account and get 1,000 free verification credits, no credit card required.
Upload or connect your list
Upload a CSV, connect your CRM via OAuth, or integrate our API into your workflow.
Verify and clean
Our 9-point verification engine checks every address. Remove invalids, quarantine risky addresses, and keep the clean ones.
Send with confidence
Lower bounces, better deliverability, and a protected sender reputation. Your campaigns will thank you.
Ready to clean your prospect list?
Start with 1,000 free verification credits. No credit card required.