Lusha is great for finding contacts but data still decays. BounceZero verifies your Lusha exports in bulk before any email goes out - protecting your domain from day one.
100 free verifications every month. No credit card required.
Lusha gives you fast access to B2B contacts, but every contact database fights the same battle: people change jobs, mailboxes get deactivated, and domains flip to catch-all. Verification is the layer between good data and a burned sender domain.
B2B email data decays at roughly 22% per year. A Lusha contact found three months ago may already be a dead mailbox. Verifying at send time - not discovery time - is what keeps bounce rates down.
Around 23% of B2B domains are catch-all - they accept mail for any address, valid or not. BounceZero runs a 3-probe catch-all analysis so you know which Lusha contacts are truly deliverable.
Cross a 2% bounce rate and Google and Microsoft start throttling you into spam. One unverified Lusha campaign can undo months of warm-up. Cleaning first keeps your sender reputation intact from day one.
Each address in your export runs through our full pipeline in seconds - timing that varies by provider and verification path, or bulk-processed for large lists.
Live SMTP-level check that the exact mailbox exists and accepts mail - not just the domain.
3-probe analysis flags catch-all domains so risky Lusha contacts don't masquerade as valid.
Flags info@, sales@ and admin@ addresses that hurt reply rates and trigger complaints.
Catches temporary and throwaway domains that occasionally slip into contact databases.
Confirms the domain actually has mail servers configured and able to receive email.
Identifies likely spam traps - recycled addresses that can blocklist your domain instantly.
No plugins to install, no workflow to rebuild. Your Lusha CSV goes in, a cleaned list comes back out.
In Lusha, select the contacts or list you want to reach and export as CSV. Include the email column - every other column is preserved untouched.
Drag and drop your Lusha export into the BounceZero dashboard. We auto-detect the email column and handle up to 1,000,000 addresses per dashboard job.
All 6 checks run on each contact - mailbox existence, catch-all probing, role, disposable, MX and spam trap screening. A 10K-row export takes 5-10 minutes.
Get your original file back with verdict and confidence columns added. Filter to valid-only, or keep accept-all contacts for a lower-volume secondary sequence.
Re-import verified contacts into Lusha lists, or push the clean CSV straight into your outreach tool. Send knowing your bounce rate will stay under 0.5%.
You already pay for contact data - verification shouldn't cost more than the data itself. $3 per 1,000 verifications, no subscriptions, credits never expire.
100 free verifications every month. No credit card required - enough to spot-check a small Lusha export before you buy anything.
Start freeA 10,000-contact Lusha export verified for $30, in 5-10 minutes, at up to 99.8% accuracy in internal testing on SMTP-verifiable addresses. Volume discounts apply automatically on larger batches.
View bulk pricingNot sure verification pays off? Run the numbers in our ROI calculator.
Common questions from teams verifying Lusha data before outreach.
BounceZero works with Lusha via CSV: export your contacts from Lusha, upload to BounceZero, and download the verified file with verdict columns added. For automated workflows, our API (provider-dependent response time) can verify Lusha contacts in real time as they enter your CRM or sequencer - see our API docs for details.
Lusha provides confidence indicators on its data, but that reflects the address at discovery time. B2B email decays at roughly 22% per year, and Lusha can't re-check every contact continuously. BounceZero performs live SMTP-level verification at the moment you're about to send - which is when accuracy actually matters.
A typical 10,000-contact export completes in 5-10 minutes. Bulk batches support up to 1,000,000 addresses per dashboard job. You'll get an email when your cleaned file is ready to download.
Around 23% of B2B domains are catch-all, and Lusha contacts at those companies can't be confirmed by a simple SMTP check. BounceZero runs a 3-probe catch-all analysis and returns a confidence score, so you can send to high-confidence catch-alls in a lower-volume sequence instead of discarding them entirely.
It's the single biggest lever. Mailbox providers throttle senders whose bounce rate exceeds ~2%. Lists cleaned by BounceZero typically bounce under 0.5%, which keeps your domain reputation healthy from the very first Lusha campaign.
It's $3 per 1,000 verifications with automatic volume discounts on larger batches - a 10K Lusha export costs about $30. Every account also includes 100 free verifications per month with no credit card required.
Building an automated pipeline? Explore the verification API.
up to 99.8% accuracy in internal testing on SMTP-verifiable addresses. $3 per 1,000 verifications. Results in seconds. Start with 100 free verifications - no credit card required.
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