👋 Hey Product Hunt! I'm Winner, founder of Sokolov Systems.

Ever collected hundreds of email addresses for your business, outreach campaign, or newsletter, only to wonder how many are worth using?

Before you spend time sending emails, clean up your list first. 🚀

I built Sokolov Systems — a free email validation tool to help you:

✅ Validate email addresses
📬 Identify email providers in your list
📊 Sort and organize email addresses in bulk
⚡ Process up to 5,000 emails in a bulk workflow

Whether you're a marketer, founder, sales professional, or someone building a business, you shouldn't have to pay just to get started with email validation.

It's free to try. No complicated setup — just bring your list and see how it works.

👉 Try it here: https://sokolovsystems.com

I'm building Sokolov Systems to make email data easier to work with, and I'd genuinely love your feedback.

What's your biggest frustration when working with email lists? 👇