This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
KillBounce
Email verifier that actually handles catch-all domains
Three-layer email verification with a real SMTP probe not regex pretending. Built because the $80/month tools couldn't handle catch-all domains on Google Workspace (anti-enumeration tricks every regex-and-DNS approach into a false "accept all"). KillBounce opens a live SMTP session with the recipient server and reads the actual response. $4 per 1,000 credits. Pay-as-you-go. Credits never expire. Public legal stack at /trust for procurement.
I built KillBounce after getting tired of paying $80+/month for email verification tools that still let bad emails slip through. The biggest problem? Catch-all domains. Most verifiers see a catch-all domain, label it "Valid" with high confidence, and move on. Then your campaign goes out, hard bounces pile up, and your sender reputation takes the hit.
KillBounce goes deeper. Instead of stopping at syntax checks and DNS records, it opens a real SMTP conversation with the receiving server and analyzes how the server actually behaves. That means better detection of risky, catch-all, and undeliverable emails before you send. ✅ Syntax, DNS & MX validation ✅ Live SMTP verification ✅ Better catch-all detection ✅ No monthly subscription ✅ Credits never expire
Pricing starts at just $4 for 1,000 verifications.
I'd love feedback on: 🔹 Is the pricing simple and fair? 🔹 Does the catch-all explanation make sense? 🔹 Is our Trust page useful for security reviews, or unnecessary?
🎁 First 100 Product Hunt commenters get 1,000 free credits just leave a comment and I'll DM you the details.
@nikhil_chaudhary21 I'm currently using another verification tool that costs around $100–200/month, and compared to that, your pricing is significantly lower for the volume I'm looking at.
How are you able to maintain the same level of accuracy at this price point? Not skeptical at all—just genuinely curious about how you're able to keep costs so much lower while delivering comparable verification quality.
About KillBounce on Product Hunt
“Email verifier that actually handles catch-all domains”
KillBounce was submitted on Product Hunt and earned 7 upvotes and 4 comments, placing #62 on the daily leaderboard. Three-layer email verification with a real SMTP probe not regex pretending. Built because the $80/month tools couldn't handle catch-all domains on Google Workspace (anti-enumeration tricks every regex-and-DNS approach into a false "accept all"). KillBounce opens a live SMTP session with the recipient server and reads the actual response. $4 per 1,000 credits. Pay-as-you-go. Credits never expire. Public legal stack at /trust for procurement.
KillBounce was featured in Email (36.7k followers), Email Marketing (33.5k followers) and Developer Tools (514k followers) on Product Hunt. Together, these topics include over 83.7k products, making this a competitive space to launch in.
Who hunted KillBounce?
KillBounce was hunted by Nikhil Chaudhary. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how KillBounce stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Nikhil Chaudhary
Hey Product Hunt 👋
I built KillBounce after getting tired of paying $80+/month for email verification tools that still let bad emails slip through.
The biggest problem? Catch-all domains.
Most verifiers see a catch-all domain, label it "Valid" with high confidence, and move on. Then your campaign goes out, hard bounces pile up, and your sender reputation takes the hit.
KillBounce goes deeper.
Instead of stopping at syntax checks and DNS records, it opens a real SMTP conversation with the receiving server and analyzes how the server actually behaves. That means better detection of risky, catch-all, and undeliverable emails before you send.
✅ Syntax, DNS & MX validation
✅ Live SMTP verification
✅ Better catch-all detection
✅ No monthly subscription
✅ Credits never expire
Pricing starts at just $4 for 1,000 verifications.
I'd love feedback on:
🔹 Is the pricing simple and fair?
🔹 Does the catch-all explanation make sense?
🔹 Is our Trust page useful for security reviews, or unnecessary?
🎁 First 100 Product Hunt commenters get 1,000 free credits just leave a comment and I'll DM you the details.
Try it instantly:
https://www.getkillbounce.com
Looking forward to hearing what you think 🙏