Bounced emails in Klenty kill your domain reputation step by step. BounceZero verifies your prospect list before import - so every cadence runs on real, reachable contacts.
Klenty is built to automate multi-step cadences at scale. That scale works against you the moment your prospect data goes stale - every bad address gets hit by every step in the sequence.
One invalid prospect in a 5-step Klenty cadence can trigger up to 5 bounce events. A 6% bad-data rate behaves like a 20%+ bounce problem to mailbox providers watching your domain.
Around 22% of B2B email addresses go stale every year as people change jobs. The list that performed last quarter is silently degrading inside your Klenty prospect database right now.
Once Google and Microsoft flag your sending domain, even valid prospects start landing in spam. Klenty open and reply rates collapse - and recovering reputation takes weeks, not days.
BounceZero runs 6 layered verification checks on every address - so what lands in your Klenty cadence is a real, deliverable mailbox.
Live SMTP-level confirmation that the mailbox actually exists and accepts mail - before Klenty ever sends step one.
Roughly 23% of B2B domains are catch-all. Our 3-probe test separates truly deliverable addresses from accept-everything servers.
Flags info@, sales@ and admin@ addresses that rarely reply to cadences and often trigger spam complaints.
Catches temporary and throwaway domains that pollute prospect lists scraped or bought from low-quality sources.
Confirms the domain has functioning mail servers configured - dead domains are rejected instantly.
Identifies likely spam trap addresses that would blacklist your sending domain the moment a Klenty step fires.
A clean-before-import workflow that takes minutes and protects every cadence you launch.
Export prospects as CSV from Klenty (Prospects > Export), or take the raw list straight from your data provider - Apollo, ZoomInfo, LinkedIn scrapes, or webinar sign-ups.
Drag and drop the CSV into the BounceZero dashboard. Dashboard jobs up to 1,000,000 addresses are supported - a typical 10K-prospect list finishes in 5-10 minutes.
Mailbox existence, catch-all, role, disposable, MX and spam trap screening - each address gets a clear verdict: valid, invalid, or risky.
Export valid-only results as CSV. Keep the risky segment separate if you want to route catch-alls into a lower-volume, closely monitored cadence.
Re-import the clean CSV into Klenty and assign prospects to your cadence. Cleaned lists typically bounce under 0.5% - well inside safe deliverability territory.
Enriching prospects continuously? Verify in real time at the point of capture with our provider-aware verification API.
Compare the cost of cleaning a list against the cost of burning the domain your whole Klenty operation depends on.
Want exact numbers for your list size? Try the ROI calculator.
Everything Klenty users ask about keeping cadences off the bounce list.
BounceZero works with Klenty through a clean CSV workflow: export prospects from Klenty or your data source, verify them in BounceZero, and re-import the valid segment. For automated pipelines, our REST API (provider-dependent response time) lets you verify each prospect at the point of enrichment - before it ever reaches Klenty.
The most common causes are stale B2B data (around 22% of business emails go bad each year), unverified purchased lists, and catch-all domains that accept mail then reject it downstream. Because Klenty cadences send multiple steps per prospect, a single bad address can generate several bounce events - making the problem look bigger to mailbox providers than your raw data quality suggests.
Aim to stay under 2%; Google and Microsoft start degrading sender reputation above that, and sustained rates over 4-5% can get your domain effectively blocked. Lists cleaned with BounceZero typically bounce below 0.5%, keeping you comfortably inside the safe zone even at high cadence volume.
Yes - always. Data providers refresh on their own schedules, and by the time a contact reaches your export, a meaningful share is already invalid or has moved to a catch-all domain. Verifying between export and Klenty import costs $3 per 1,000 emails and filters bad addresses before your sending domain pays the price.
Roughly 23% of B2B domains are catch-all, which most verifiers simply mark "unknown." BounceZero runs a 3-probe catch-all analysis plus mailbox-level signals to score deliverability at up to 99.8% accuracy in internal testing on SMTP-verifiable addresses. You can import high-confidence addresses into your main cadence and route genuine unknowns to a separate, lower-volume Klenty cadence.
Re-verify any list older than 90 days before assigning it to a new cadence, and always verify fresh imports regardless of source. With 22% annual email decay, a 6-month-old list can carry 10%+ invalid addresses. Your first 100 verifications each month are free, so spot-checking older segments costs nothing.
Verify your first 100 emails free - no credit card required. Clean your list in minutes and launch cadences your domain reputation can survive.
Start Verifying Freeup to 99.8% accuracy in internal testing on SMTP-verifiable addresses - $3 per 1,000 verifications - Results in seconds
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