Built for cold email agencies and RevOps teams running Smartlead.ai: scrub scraped B2B lists, isolate corporate catch-alls, and protect client sender domains at $19 per 10k ($49 per 50k).
Smartlead.ai
·
Target Field: email (Smartlead Campaign CSV)
·
Compliance Guard: Smartlead Auto-Pause Bounce Threshold (<1.5%)
Count unique contacts, remove duplicates free ($0), preview 5 live SMTP checks, and unlock full list cleaning for $19.
Across Smartlead.ai workspaces, roughly 16% of unverified email (Smartlead Campaign CSV) records are invalid, deactivated, disposable, or duplicate contacts that inflate your Smartlead.ai invoice every month:
Drop your CSV or Multi-Sheet Excel (.xlsx) workbook from Clay, Apollo, or LinkedIn Sales Navigator into KaijuVerifier.
We strip invalid mailboxes, 1M+ disposable domains, syntax typos, and high-complaint role addresses (abuse@, legal@, compliance@).
Import the verified CSV into Smartlead.ai knowing your rotating mailboxes won’t get auto-paused or blacklisted by high bounce rates.
Automate lead verification in Clay, n8n, or Make via POST /api/v1/verify right before triggering the Smartlead "Add Lead to Campaign" action.
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 (Smartlead Campaign CSV)}}"}'Replacing burned secondary domains and re-warming mailboxes takes 2–3 weeks. Verifying every lead list with KaijuVerifier removes dead B2B mailboxes and flags catch-all servers before Smartlead sends a single email.
Yes. KaijuVerifier natively supports Multi-Sheet Excel (.xlsx) workbooks and exports clean CSV or .XLSX files ready for Smartlead import.
Synchronizing Smartlead.ai Outbound Engine with KaijuVerifier protects your workspace via Master Inbox & Rotating Subdomain Protection while automating Filter Catch-Alls by Score >= 70 Before Launching Sequences. Unverified CRM imports silently accumulate 15% to 22% invalid, catch-all, role-based, and disposable addresses that degrade deliverability and inflate monthly seat costs.
By piping your Smartlead.ai Outbound Engine exports through our native Multi-Sheet Excel (.XLSX) and CSV scrubber — or connecting real-time webhooks to POST /api/v1/campaigns/{id}/leads — you isolate 550 hard bounces before a single campaign leaves Smartlead.ai Outbound Engine, paying $0 for duplicates and inconclusive greylisted unknowns.
| Smartlead.ai Outbound Engine Integration Layer | Technical Sync Mechanism | Deliverability & Billing Outcome |
|---|---|---|
| Compliance & Bounce Shield | Master Inbox & Rotating Subdomain Protection | Keeps hard bounce rate below 0.28% across all Smartlead.ai Outbound Engine sends |
| CRM Cost Optimization | Filter Catch-Alls by Score >= 70 Before Launching Sequences | Eliminates paying monthly storage fees for dead & throwaway contacts |
| REST API / Webhook Endpoint | POST /api/v1/campaigns/{id}/leads ↔ /api/v1/verify-single | Sub-350ms real-time tagging or 100,000+ rows/hr batch sync |