Zapier email verification with BillionVerify
Zapier is one of the world's most widely used no-code automation platforms, connecting thousands of apps through simple trigger-action workflows. Adding BillionVerify to your Zapier automations gives every email-collecting workflow a built-in verification step, ensuring invalid and disposable addresses are caught before they reach your CRM, email platform, or database.
Why verify before the send
Zapier workflows move data between apps at speed, which means a single invalid email address can instantly spread across your CRM, marketing tool, and helpdesk before anyone catches it. BillionVerify inserts a verification gate into the flow, blocking role-based, disposable, and undeliverable addresses at the source and protecting the deliverability of every connected tool.
Ready-to-use n8n workflow
Import this workflow into n8n — it verifies every address with BillionVerify before Zapier sends, so only deliverable contacts are emailed. Install the BillionVerify community node first, then add your API key.
Workflow templates with Zapier
Ready-to-use workflows that verify emails before Zapier sends.
How it works
- 1
Choose any Zapier trigger — a new form submission, a new CRM contact, a spreadsheet row, or a webhook.
- 2
Add a Webhooks by Zapier action (or Code step) to call the BillionVerify REST API with the captured email address.
- 3
BillionVerify returns a verification result: valid, invalid, disposable, role-based, or catch-all.
- 4
Use Zapier's Filter or Paths to branch the workflow — valid addresses continue to your destination app, while flagged ones are sent to a review list or discarded.
- 5
Optionally log all verification results to a Google Sheet or Airtable base for ongoing list-quality monitoring.
When to use this
Form submission filtering
When a lead fills in a Typeform, Gravity Forms, or any other form connected to Zapier, call the BillionVerify REST API as a Code or Webhook step before the contact is added to Mailchimp, HubSpot, or your CRM.
E-commerce sign-up validation
For Shopify, WooCommerce, or similar stores connected via Zapier, verify customer email addresses at the point of account creation to prevent invalid addresses from clogging your order notification and re-engagement flows.
Multi-tool list hygiene
Use a scheduled Zap to pull contacts from one app, run them through BillionVerify via a Webhook step, and write only verified addresses back to your email marketing platform, keeping every connected tool in sync with a clean list.
FAQ
How do I call BillionVerify from inside a Zap?
Use the Webhooks by Zapier action to send a GET or POST request to the BillionVerify REST API, passing the email as a parameter. The API returns a JSON result you can use in subsequent Zap steps.
Can I use BillionVerify with Zapier's Filter feature?
Yes. After the BillionVerify webhook step returns a result, add a Zapier Filter to continue only when the verification status is 'valid', automatically halting the Zap for invalid or disposable addresses.
Does BillionVerify offer bulk verification for large Zapier exports?
Yes. For large contact lists, you can use BillionVerify's bulk verification API or dashboard to process thousands of addresses at once, outside of per-record Zap runs.
Will verifying emails use up my Zapier task quota?
The BillionVerify webhook call counts as one Zapier task per email, the same as any other action step. Factor this into your Zap task budget when designing high-volume workflows.
Verify emails in Zapier
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