Manage newsletter signups in Baserow
Pull contacts, verify each address with BillionVerify, and continue to Baserow — 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 Baserow 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
- 1Signup WebhookSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 2Submit WebhookSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 3Confirm WebhookSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 4Create HTML FormSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 5Extract Submitted ValuesSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 6Extract GUIDSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 7Create Form FileSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 8Add New SubscriberSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 9Get SubscribersSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 10Verify 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.
- 11Update SubscriberSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 12IF deliverableLogic· n8n
Branches on the verification result: only deliverable addresses continue to the send; the rest are skipped and flagged.
- 13Create Confirmation PageSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 14Send EmailSend· n8n
Sends only to verified, deliverable addresses. Swap in your own provider node if you send elsewhere.
- 15Create Response PageSource· n8n
Provides or transforms the contact data flowing through the workflow.
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 Baserow send or sync.
- Protecting Baserow deliverability and sender reputation.
- Keeping bounce rates low so your sending is never throttled.
FAQ
Why verify before sending in Baserow?
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