Real-time email validation API for clean lists
Slash bounce rates by 94% and protect your sender reputation. VeriMail processes 2.4 billion validations monthly for SaaS, e-commerce, and marketing teams worldwide.
Engineered for scale and precision
Our multi-layer verification pipeline catches invalid addresses before they hit your ESP. Built for developers who demand sub-200ms response times.
Real-Time Syntax & Domain Checks
Instant RFC 5322 compliance verification paired with DNS MX/SPF record lookups. Catches typos and malformed addresses in under 45ms.
Disposable Email Detection
Blocks 14,000+ known throwaway providers like Mailinator and Guerrilla Mail. Automatically updates against new disposable domains daily.
Role-Based & Catch-All Filtering
Flags generic inboxes like info@, support@, and noreply@. Identifies catch-all domains that accept all mail but never engage, preserving your deliverability score.
Performance that scales with your send volume
From seed-stage startups to Fortune 500 marketing ops, VeriMail handles peak loads without throttling or downtime.
2.4B Validations/Month
Consistently maintains 99.99% uptime across three global edge regions. No rate limits on Enterprise plans.
99.8% Verification Rate
Industry-leading SMTP handshake success rate. Outperforms legacy validators by 18% on hard bounce prevention.
$14.2M Saved in ESP Fees
Clients reduce wasted send costs by purging invalid addresses before campaign deployment. ROI typically realized in week one.
From sign-up to verified in three steps
Drop our SDK into your registration flow or batch-process legacy CSVs. Full documentation and webhook support included.