Even "Verified" Apollo.io exports average 8–18% bounce rates due to cached B2B job changes and corporate catch-all domains (Google Workspace, Microsoft 365, Mimecast). Scrub your Apollo CSV/XLSX in minutes starting at $19.
Apollo.io
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Target Field: Email (Apollo CSV)
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Compliance Guard: Apollo Bounce Shield & Google/Outlook 2% Threshold
Instant client-side pre-scan (0 credits) + live 5-email Smart SMTP sample check before you even sign up.
On average, 16% of unverified CRM/ESP lists consist of invalid, deactivated, disposable, or duplicate contacts that you pay to store every single month. Slide your list size below:
In Apollo.io, select your prospect list and export to CSV (including Email, First Name, Last Name, Company, Title, and LinkedIn URL).
Our 7-Layer Smart SMTP engine verifies every corporate MX server live, separating 100% safe mailboxes from deactivated employee accounts and catch-all traps.
Export only the Valid (Grade A) leads for your primary sending domains, and route Catch-All (Grade B/C) leads to secondary warmup domains or LinkedIn outreach.
Connect Apollo.io via Make, Clay, or n8n to POST /api/v1/verify and validate B2B prospects automatically before pushing them into your sequencer.
curl -X POST https://kaijuverifier.com/api/v1/verify \
-H "Authorization: Bearer kv_live_your_api_key" \
-H "Content-Type: application/json" \
-d '{"email": "{{Email (Apollo CSV)}}"}'Apollo caches verification statuses for weeks or months, and B2B employees change jobs at ~2.5% per month. Furthermore, corporate catch-all servers initially accept RCPT TO during basic checks and bounce later. KaijuVerifier runs live real-time SMTP + randomized catch-all control probes right before you send.
Yes. Every column in your Apollo CSV or Multi-Sheet .XLSX export is preserved intact, with kaiju_status, kaiju_score, and kaiju_is_catchall appended.
You can clean 5,000 Apollo leads for a $19 one-time credit pack (never expires) or 10,000 leads/month on Starter for $19/mo — with $0 charged for Unknown or Duplicate rows.