Building Real-Time Email Verification, Spam Detection, and Fraud Bot Protection from Scratch

Richard Banguiz — Wed, 25 Mar 2026 14:41:16 +0000

Recently, I’ve been working on a project to solve a specific set of challenges I was facing. My primary goal was to avoid adding unnecessary complexity to my codebase. I didn't want to add 3rd-party tools or manage additional configurations for external rate limiting. Instead, I built a custom NPM package to handle everything internally.

veripy home page

The package includes a real-time dashboard to monitor, approve, or block emails instantly. By verifying MX records and cross-referencing a massive database of over 100,000 disposable email providers, it ensures high accuracy when filtering out temporary or fraudulent addresses.

Setting it up is super easy.

npm install veripy-sdk

for more info go to the docs veripy docs

DEV Community: Richard Banguiz

Building Real-Time Email Verification, Spam Detection, and Fraud Bot Protection from Scratch