BounceZero
ZeroBounce
VeriMails
NeverBounce
Kickbox
BounceBan
Bouncebuster.io
BounceGuard
DeBounce
NeverBounce
ZeroBounce
Kickbox
Email List Verify
clearout.io
Hunter.io
BriteVerify
BounceZero verifies email addresses in real time using a 5-stage pipeline: syntax check, DNS/MX lookup, SMTP handshake, catch-all detection, and ML scoring across 65+ signals.
Every email returns one of four verdicts: Deliverable, Risky, Undeliverable, or Unknown โ with a confidence score and explanation.
DeBounce is a fast, accurate, and affordable email validation service. It helps businesses to get rid of invalid email addresses from their databases. If you use popular ESPs to send emails, DeBounce can easily integrate with them and transfer your lists for validation. Here are some key features of DeBounce:
Besides the paid services, DeBounce offers some free services. It offers a life-time free disposable email detection API that helps you combat fake and temporary signups. However, if you want to have a more complex validation engine, you can go for a paid plan. DeBounce has more than 900 positive reviews which show the customers are satisfied and the team really cares about each customer.
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BounceZero's answer
BounceZero runs a true 5-stage verification pipeline โ syntax, DNS/MX, live SMTP handshake, catch-all detection, and ML scoring โ on every address. Most competitors stop at SMTP. We go further with a 3-probe catch-all test, XGBoost risk scoring for providers that block SMTP probes, and per-provider intelligence built from 200+ email provider profiles including every major ISP in Europe, the US, and Latin America.
BounceZero's answer
Python (FastAPI) for the verification engine and API, PostgreSQL for data storage, XGBoost and Bayesian models for ML scoring, SMTP probing across dedicated IP pools for deliverability testing, and a PHP frontend. Hosted on OVH infrastructure with BYOIP egress for clean sending reputation.
BounceZero's answer
Three reasons: accuracy, transparency, and price. BounceZero returns a confidence score and plain-English explanation with every result โ not just a pass/fail verdict. It costs $3 per 1,000 verifications with no subscription required and 100 free credits every month. And the API returns results in under 3 seconds with no rate limits on paid plans.
BounceZero's answer
Email marketers, growth teams, and developers who send campaigns or build signup flows and need to keep bounce rates below 2%. Also agencies cleaning client lists before migrations and SaaS companies validating email at the point of collection via API.
BounceZero's answer
BounceZero was built after seeing too many email campaigns destroyed by high bounce rates that could have been prevented. Existing tools were either expensive subscription products or black-box APIs that gave a verdict with no explanation. We built BounceZero to be affordable, transparent, and accurate โ starting with 100 free credits so anyone can test it without a credit card.
BounceZero's answer
Leave this blank for now โ fill it in once you have a few named customers willing to be referenced.
We have recently validated 50K email addresses using DeBounce. All is good so far. I recommend this email validation tool to others.
Based on our record, DeBounce seems to be more popular. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I was going to recommend debounce.io, but just saw this message. Source: over 4 years ago
Have you run your list through a list cleaner/deliverability solution? I use debounce's API (debounce.io) for our product and it is pretty good. Source: about 5 years ago
I use a list taken from GitHub but we also use an API to check if itโs a disposable inbox (https://debounce.io/). Source: about 5 years ago
ZeroBounce - Removes invalid emails from your list to prevent email bounces from ruining your deliverability.
NeverBounce - Real-time email verification and cleaning to ensure emails never bounce.
VeriMails - Verify email lists at a fraction of what you pay now. From $12.50/mo for 10,000 verifications - up to 30x cheaper than ZeroBounce.
Kickbox - Verify your email address lists with our drag and drop interface, or integrate into your app with our API. Prevent fake and bot account sign-ups by confirming your users are real humans with a real email address.
Email List Verify - The Fastest Way to Improve Email List Deliverability and ROI
BounceBan - Unlimited free email verify - works great for accept-all