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!
Free Options
Launch Team / Built With
EneyProactive AI for Mac. Free test, 20,000 credits.
Promoted
Hey Product Hunt!
After launching Released, our AI assistant for vacation rental hosts, we ran into a big problem: email bounces.
we needed to validate emails fast, accurately, and affordably, but most tools were overpriced, clunky, or just didn’t work well enough.
So we built Lero, a blazing fast, accurate, and affordable email validator made specifically for founders who want clean lists without blowing their budget.
50 ms validation speed
97.3% accuracy
From $0.0003/email — pay-as-you-go
First 500 emails free
Protect your sender reputation
Clean lists = higher conversions, fewer bounces
Special for Product Hunt:🎟️ We’re giving away 1,000,000 free credits to a user who signs up today💥
Use code PHFAM to validate 10,000 emails for just $0.99
Lero started as a tool I built to solve my own pain. Now it’s here to help other founders avoid the same trap.
Try it out and let me know what you think.
It’s still early days — We know it’s not perfect yet. But we’re fully committed to making it better every single day.
Built by founders, for founders.👉 Visit Lero
Lero's fast validation speed and affordable pricing are a huge relief for founders dealing with email bounces! For users with large email lists, does Lero have any plans to offer bulk validation discounts or more advanced list management features?
Really like the fast 50 ms email checks and affordable pay-as-you-go pricing—nice work to the team for making validation more accessible for founders.
Congrats on the launch - love that it's pay-as-you-go. Just upvoted and will try it out now!
@ha_anh_nguyen Thanks so much, Anh! 🙌 We're thrilled you like the pay-as-you-go model — we built it to be as flexible and accessible as possible. Appreciate the support and can't wait to hear what you think after trying it out!
Super handy for anyone running campaigns or managing user lists. Fast, accurate, and affordable — just what founders need. Congrats on the launch and love the generous 1M credit giveaway! 🚀📧
nice one, will use it