Mailboxlayer

Simple and Powerful Email Verification API for Developers

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March 12, 2026 A simple email verification tool for developers and businesses

While working on different web projects, I kept running into the same problem: fake or invalid email addresses ruining signups and email campaigns. High bounce rates, wasted marketing budgets, and messy databases.

So I decided to build MailboxLayer a lightweight API and tool that helps verify email addresses in real time and keep email lists clean.

The goal is simple:
• Reduce bounce rates
• Improve email deliverability
• Help businesses maintain high-quality email data

Still early, but I’d love feedback from fellow indie hackers and developers.

If you run a SaaS, newsletter, or any product with user signups, I’d love to hear:
👉 How do you currently validate emails?

Check it out: https://mailboxlayer.com/

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About

Our motivation behind MailboxLayer is to provide businesses and developers with a simple, fast, and reliable email validation solution. Many companies struggle with invalid or fake email addresses that harm deliverabilit