We built an email verification tool that hits 99.8% accuracy — here's why most tools fall short

Hey Product Hunt community 👋

I'm the maker of Leads Sentry — an email verification tool we built after getting burned by high bounce rates that were killing our sender reputation.

Most email verifiers do a simple syntax check and call it done. We weren't satisfied with that, so we built a 6-layer verification engine that checks:

✅ Syntax validation

✅ Domain & DNS lookup

✅ MX record check

✅ SMTP handshake

✅ Disposable/temporary email detection

✅ Role-based address flagging

The result? 99.8% accuracy, and over 50,000 users have run their lists through it.

We offer:

- Real-time API for developers (integrate at signup forms)

- Bulk list upload (CSV)

- Instant results dashboard

Would love feedback from this community — especially from devs and marketers who've wrestled with deliverability issues.

Try it free at leadssentry.com — no credit card required.

What's your biggest email deliverability challenge? Drop it below 👇