The only B2B email verifier that goes beyond SMTP — we detect catch-all domains AND verify individual mailboxes with 99% accuracy. Protect your sender reputation.
Verification Result
Accuracy
vs. industry average 87%
2B+
Emails Verified
99.2%
Accuracy Rate
200ms
Average Speed
50K+
Happy Users
93% of marketers skip catch-all emails entirely because no tool can verify them. That's thousands of real prospects you'll never reach — and your competitors won't either.
40%
B2B Emails Are Catch-All
Nearly half of all business domains accept any email — making verification impossible for most tools.
90%
Verifiers Can't Verify Catch-All
They only detect catch-all domains — they never verify individual mailboxes. You get “Unknown” as a result.
93%
Marketers Skip Catch-All
They throw away perfectly good leads because they can't tell which catch-all emails are real.
When 93% of marketers skip catch-all emails, their inboxes are wide open. You get first-mover access to untouched prospects.
Clean Inboxes
No email fatigue — your message stands out
High Open Rate
Prospects actually see your email first
High Reply Rate
Less competition = more conversations
More Conversions
Verified leads convert 3x better
Sending to unverified catch-all domains is the #1 cause of domain blacklisting
Our engine does the hard work. You get the results.
Step 1
Upload a CSV or paste emails directly. Single emails or millions — we handle both.
Step 2
Our 10-layer verification engine analyzes every email. Catch-all, Microsoft 365, disposable — nothing slips through.
Step 3
Every email gets a verdict — Valid, Invalid, Risky, or Unknown — with a confidence score so you know exactly who to contact.
Step 4
Export clean lists directly to your ESP or CRM. Fewer bounces, better deliverability, more replies.
Drag & drop your CSV here
or click to browse files
Upload complete — ready to verify
Start free. Upgrade when you need to. No surprises.
5,000 credits
For SDRs and solo operators building outbound.
50,000 credits
For GTM teams that need reliable pipeline data.
250,000 credits
For revenue orgs operating at scale.
“We switched from ZeroBounce to Bounso and immediately saw catch-all accuracy jump from 60% to 94%. Our bounce rate dropped below 0.3% in the first week.”
Marcus Chen
Head of Revenue Operations, ScaleAI
“Bounso's API is the fastest we've tested. We verify emails in real-time during form submission and it never adds perceptible latency. Game changer for our signup flow.”
Sarah Mitchell
VP of Growth, Rippling
“The catch-all verification is what sold us. We run outbound to enterprise accounts — most are on M365 catch-all. Bounso actually tells us which mailboxes exist.”
James Rodriguez
Director of Sales Development, Datadog
Join 50,000+ users who trust Bounso to protect their sender reputation and maximize deliverability.
No credit card Free 100 credits Setup in 2 min