Hey Product Hunt! I'm Justin, and I built EmailCheck.dev after getting a $487 bill from NeverBounce one month. THE STORY: I run a small project management SaaS (~15,000 users). Every signup, I validate the email. Well, at $0.008 per validation, those pennies add up FAST. The breaking point? One user created 150 accounts using disposable emails just to spam our roadmap with crypto requests. Fun times. So I needed email validation. But $500/month? For a tool making ~$2k/month? That's 25% of revenue just on email checks. I looked at alternatives: - ZeroBounce: Same price - Hunter.io: Wanted annual contract - Kickbox: Even more expensive Figured: "How hard can this be?" Turns out... harder than I thought, but not impossible. WHAT I BUILT: - Real-time validation (375ms avg response) - 10,000+ disposable domains (GitHub's community list) - Typo suggestions (catches "gmial.com" → "gmail.com") - MX record verification - Batch processing (100 at once) PRICING: - Free: 100/month - Starter: $9/mo (5,000 validations) - Pro: $29/mo (50,000 validations) Same features, 90% cheaper. TECH STACK: - .NET API on Fly.io (~$3/month hosting) - Supabase (auth + database) - Stripe payments PRODUCT HUNT EXCLUSIVE: Free Pro plan for 6 months ($174 value) Sign up and mention "Product Hunt" in support chat. WHAT I'D LOVE FEEDBACK ON: 1. Is the pricing clear enough? 2. What features would make this a "must-have"? 3. Developers: Is the API easy enough to integrate? Solo founder building nights/weekends. Happy to answer questions! Try it: https://emailcheck.dev P.S. If you've been frustrated with expensive email validation, I built this for you.

EmailCheck.dev

Email validation API, 90% cheaper than competitors

Email validation API, 90% cheaper than competitors