Clappia email verification with BillionVerify
Clappia is a no-code platform that lets teams build custom business apps and forms without writing code. Adding BillionVerify to your Clappia form submissions ensures that every email address collected through your apps is valid and deliverable before it enters your downstream systems.
Why verify before the send
Forms built on Clappia feed data into business processes where a bad email address can stall follow-ups, waste automation credits, or generate bounces. BillionVerify validates each submitted address for deliverability, disposable domains, and role accounts at the moment of collection, so only clean data enters your workflows and CRMs.
Ready-to-use n8n workflow
Import this workflow into n8n — it verifies every address with BillionVerify before Clappia sends, so only deliverable contacts are emailed. Install the BillionVerify community node first, then add your API key.
{
"name": "Verify emails before sending in Clappia + BillionVerify",
"nodes": [
{
"parameters": {},
"type": "n8n-nodes-base.manualTrigger",
"typeVersion": 1,
"position": [
240,
300
],
"name": "When clicking ‘Test workflow’"
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "email-field",
"name": "email",
"value": "jane@example.com",
"type": "string"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
460,
300
],
"name": "Get contacts"
},
{
"parameters": {
"sendTo": "={{ $json.email }}",
"subject": "Message for Clappia contacts",
"message": "Replace this Gmail send with your Clappia node — only deliverable, verified contacts reach it.",
"options": {}
},
"type": "n8n-nodes-base.gmail",
"typeVersion": 2.1,
"position": [
900,
300
],
"name": "Send email",
"webhookId": "",
"credentials": {
"gmailOAuth2": {
"id": "",
"name": "Gmail account"
}
}
},
{
"parameters": {
"operation": "verify",
"email": "={{ $json.email }}",
"additionalOptions": {}
},
"type": "n8n-nodes-billionverify.billionVerify",
"typeVersion": 1,
"position": [
540,
300
],
"name": "Verify Email (BillionVerify)",
"credentials": {
"billionVerifyApi": {
"id": "",
"name": "BillionVerify account"
}
}
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "is-deliverable",
"leftValue": "={{ $json.is_deliverable }}",
"rightValue": "",
"operator": {
"type": "boolean",
"operation": "true",
"singleValue": true
}
}
]
}
},
"type": "n8n-nodes-base.if",
"typeVersion": 2,
"position": [
720,
300
],
"name": "IF deliverable"
}
],
"connections": {
"When clicking ‘Test workflow’": {
"main": [
[
{
"node": "Get contacts",
"type": "main",
"index": 0
}
]
]
},
"Get contacts": {
"main": [
[
{
"node": "Verify Email (BillionVerify)",
"type": "main",
"index": 0
}
]
]
},
"Verify Email (BillionVerify)": {
"main": [
[
{
"node": "IF deliverable",
"type": "main",
"index": 0
}
]
]
},
"IF deliverable": {
"main": [
[
{
"node": "Send email",
"type": "main",
"index": 0
}
],
[]
]
}
},
"settings": {
"executionOrder": "v1"
}
}Workflow templates with Clappia
Ready-to-use workflows that verify emails before Clappia sends.
How it works
- 1
Connect Clappia to BillionVerify via the n8n community node, Integrately, or a direct REST API call from your workflow.
- 2
Configure your Clappia app to trigger verification on form submission, sending the email field value to BillionVerify.
- 3
BillionVerify checks the address against syntax rules, domain records, disposable provider lists, and live SMTP verification.
- 4
The verification result is returned to your workflow, where you can conditionally reject, flag, or approve the submission.
- 5
Clean, verified addresses continue into your business processes while problematic ones are handled separately.
When to use this
Real-Time Form Submission Validation
Trigger a BillionVerify check whenever a Clappia form is submitted. Submissions with invalid or fake email addresses can be flagged for review before they reach your downstream apps, keeping data quality high from the start.
Lead Capture App Quality Control
Sales and marketing teams using Clappia to collect leads can automatically reject disposable or undeliverable addresses at submission time, ensuring only actionable leads reach their CRM or email tool.
Employee or Vendor Onboarding Forms
When building internal onboarding apps in Clappia, verify submitted email addresses to catch typos and temporary accounts before IT systems provision access or send welcome emails.
FAQ
Can I verify emails without coding inside Clappia?
Yes. Using Integrately, you can set up a 1-click integration that automatically sends Clappia form submissions to BillionVerify and routes results back—no code required.
What types of addresses does BillionVerify catch?
BillionVerify identifies invalid, disposable, role-based, and catch-all addresses, as well as addresses with syntax errors or non-existent domains.
Does the verification add noticeable delay to form submissions?
Single-address verification typically completes in under a second, so the impact on form submission experience is minimal when integrated as a background step.
Can I use this for bulk data already collected in Clappia?
Yes. Export existing addresses and submit them to BillionVerify's batch API to clean historical records, then set up real-time checks for new submissions going forward.
Verify emails in Clappia
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