HubSpot charges steep overages per 1,000 Marketing Contacts and suspends portals whose hard bounce rate exceeds 3%. Verify leads on capture via webhook or scrub your CRM exports in minutes.
HubSpot CRM & Marketing Hub
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Target Field: Email (hs_email)
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Compliance Guard: HubSpot Deliverability Protection
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:
Export your active list or segment from HubSpot Contacts → Lists → Export, keeping Record ID and Email (hs_email).
Upload your .XLSX or .CSV to KaijuVerifier. Our engine checks MX, SMTP RCPT TO, Catch-All risk, and Role accounts.
Re-import by Record ID and mark invalid/disposable contacts as Non-Marketing Contacts so they stop counting toward your HubSpot billing tier.
Use a HubSpot Workflow ("When Contact is Created → Send Webhook") pointing to POST https://kaijuverifier.com/api/v1/verify to validate hs_email in < 250ms.
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 (hs_email)}}"}'Verify your HubSpot list with KaijuVerifier, filter contacts where status is invalid or disposable, and set their HubSpot marketing status to Non-Marketing before your next billing renewal.
Yes. Embed a 10-line fetch call to our /api/v1/verify endpoint on your landing page or trigger a HubSpot Workflow webhook upon form submission.