Lero - Email Validator

L-

Zero bounce for founders

Website leromail.com

What it is

Enterprise-grade email validation for founders. Check any address in 50 ms with 97.3 % accuracy. Pay-as-you-go from $0.0003/email—first 500 checks free. Stop overpaying for bounces. Launch day: win 1 M credits!

Intent

I need it when

Reduce costs associated with sending emails to non-existent addresses

Lero identifies invalid emails upfront so organizations avoid wasting email sending credits and infrastructure costs on undeliverable addresses

Verify email addresses are valid and deliverable before sending marketing campaigns

Lero validates email addresses to reduce bounce rates and improve campaign deliverability by identifying invalid, inactive, or non-existent email addresses before outreach

Integrate email validation into application signup and form submission workflows

Lero provides API access to validate email addresses in real-time during user registration, preventing typos and fake email entries at point of collection

Clean and maintain a high-quality email list to protect sender reputation

Lero removes invalid emails from contact lists, preventing hard bounces and spam complaints that damage sender reputation and email deliverability scores

Drop

Not a fit when

User needs real-time email verification during signup forms with sub-100ms latency requirements
Organization requires on-premise or self-hosted email validation infrastructure
User operates in regions with strict data residency requirements for email data
Business needs bulk historical email list cleaning without API integration
User requires email validation with advanced deliverability scoring beyond syntax checking

Commercials

Pricing

Pricing not specified