Qualify and call back inbound leads with OpenAI, Bland AI, Airtable and SendGrid
Pull contacts, verify each address with BillionVerify, and continue to Bland AI — only deliverable addresses get through.
Why verify before the send
Sending to invalid, risky, catch-all, or disposable addresses spikes your bounce rate and erodes sender reputation. A verification gate before the Bland AI step removes that risk automatically — only deliverable addresses continue, the rest are flagged.
The workflow
BillionVerify — verification sits right before the send.
Node by node
- 1WebhookSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 2Call Outcome WebhookSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 3Validate & Clean DataSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 4Parse Call OutcomeSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 5Respond to Webhook1Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 6AI Lead QualificationSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 7CodeSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 8Check Validation StatusLogic· n8n
Branches on the verification result: only deliverable addresses continue to the send; the rest are skipped and flagged.
- 9Check Call SuccessLogic· n8n
Branches on the verification result: only deliverable addresses continue to the send; the rest are skipped and flagged.
- 10Create a recordSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 11Respond to WebhookSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 12Code1Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 13Verify Email (BillionVerify) 4Verify· billionverify
The BillionVerify node verifies the address — status (valid / invalid / risky / catch-all / role / disposable), is_deliverable, and a confidence score — before anything is sent.
- 14Check for AI CallingLogic· n8n
Branches on the verification result: only deliverable addresses continue to the send; the rest are skipped and flagged.
- 15Create Calendar eventSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 16IF deliverable 4Logic· n8n
Branches on the verification result: only deliverable addresses continue to the send; the rest are skipped and flagged.
- 17Get availability in a calendarSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 18Verify Email (BillionVerify) 2Verify· billionverify
The BillionVerify node verifies the address — status (valid / invalid / risky / catch-all / role / disposable), is_deliverable, and a confidence score — before anything is sent.
- 19Add Successful Call RecordSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 20Send Priority Email for Failed CallsSend· n8n
Sends only to verified, deliverable addresses. Swap in your own provider node if you send elsewhere.
- 21Code in JavaScriptSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 22IF deliverable 2Logic· n8n
Branches on the verification result: only deliverable addresses continue to the send; the rest are skipped and flagged.
- 23Verify Email (BillionVerify) 3Verify· billionverify
The BillionVerify node verifies the address — status (valid / invalid / risky / catch-all / role / disposable), is_deliverable, and a confidence score — before anything is sent.
- 24Update Failed Call RecordSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 25Trigger AI Phone CallSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 26Send Priority EmailSend· n8n
Sends only to verified, deliverable addresses. Swap in your own provider node if you send elsewhere.
- 27IF deliverable 3Logic· n8n
Branches on the verification result: only deliverable addresses continue to the send; the rest are skipped and flagged.
- 28Update Call RecordSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 29Send Booking ConfirmationEmailSend· n8n
Sends only to verified, deliverable addresses. Swap in your own provider node if you send elsewhere.
- 30Check for Follow-Up SequenceLogic· n8n
Branches on the verification result: only deliverable addresses continue to the send; the rest are skipped and flagged.
- 31Verify Email (BillionVerify)Verify· billionverify
The BillionVerify node verifies the address — status (valid / invalid / risky / catch-all / role / disposable), is_deliverable, and a confidence score — before anything is sent.
- 32IF deliverableLogic· n8n
Branches on the verification result: only deliverable addresses continue to the send; the rest are skipped and flagged.
- 33Send Nurture EmailSend· n8n
Sends only to verified, deliverable addresses. Swap in your own provider node if you send elsewhere.
Workflow JSON
Copy or download this workflow, then import it in n8n (Workflows → Import from File / Paste). Install the BillionVerify community node first, then add your API key credential.
When to use this
- Cleaning a list before a Bland AI send or sync.
- Protecting Bland AI deliverability and sender reputation.
- Keeping bounce rates low so your sending is never throttled.
FAQ
Why verify before sending in Bland AI?
Verifying first keeps your bounce rate low, which protects your sender reputation and your results.
How do I import this workflow?
Download the JSON, then in n8n go to Workflows → Import from File (or paste it). Install the BillionVerify community node and add your API key credential.
What happens to risky or catch-all addresses?
They are routed to the false branch and excluded from the send. You decide whether to retry, review, or drop them.
Add verification to your workflow
Create a free account, grab your API key, and stop bounces before they happen.
Get started free