Debounce

LexLab Email Validation API is a professional-grade email verification service that helps you clean your email lists and improve deliverability. Built as a powerful open-source alternative to Debounce.io, it offers enterprise-level validation with zero per-email costs.

Key Features
Multi-Layer Validation - Syntax checking, DNS/MX verification, and real SMTP mailbox verification
Quality Score (0-100) - Comprehensive deliverability rating for each email
Disposable Email Detection - Identifies 1000+ temporary email services (Mailinator, 10MinuteMail, etc.)
Spam Trap Detection - Protects your sender reputation by flagging known spam traps
Gibberish Detection - AI-powered detection of fake/randomly generated emails
Catch-All Detection - Identifies domains that accept any address
Role-Based Email Detection - Flags generic addresses (admin@, info@, support@)
Typo Correction - Smart suggestions for misspelled domains ("Did you mean gmail.com?")
Email Normalization - Intelligent duplicate detection handling Gmail dots, plus addressing, and domain aliases
API Capabilities
Single email validation
Bulk validation (up to 10,000 emails per request)
Real-time streaming with Server-Sent Events
File upload support (CSV/TXT)
Webhook callbacks for async processing
CSV/JSON export
Why Choose This Over SaaS Alternatives?
Self-Hosted - Your data stays on your servers
No Per-Email Costs - Unlimited validations
Open Source - Full transparency and customization
More Features - Quality scoring, gibberish detection, and normalization that competitors lack
Perfect for marketers, developers, and businesses who need reliable email validation without recurring SaaS fees.

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