Dataforb2b email verification with BillionVerify
DataForB2B is a B2B data provider that supplies company and contact information for sales prospecting. Email addresses sourced from B2B databases age quickly, and BillionVerify acts as a quality gate — confirming each address is still active before it enters your outreach sequences.
Why verify before the send
B2B contact data decays at roughly 25% per year. Sending to stale addresses from DataForB2B lists without verification risks bounce spikes, spam complaints, and long-term sender reputation damage. BillionVerify filters out invalid, catch-all, and role-based addresses so your outreach only hits real inboxes.
Ready-to-use n8n workflow
Import this workflow into n8n — it verifies every address with BillionVerify before Dataforb2b sends, so only deliverable contacts are emailed. Install the BillionVerify community node first, then add your API key.
{
"name": "Verify emails before sending in DataForB2B + 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 DataForB2B contacts",
"message": "Replace this Gmail send with your DataForB2B 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 Dataforb2b
Ready-to-use workflows that verify emails before Dataforb2b sends.
How it works
- 1
Export a contact list from DataForB2B or trigger an n8n workflow on new lead delivery.
- 2
Loop through each contact and send the email field to BillionVerify's verify endpoint.
- 3
Receive a deliverability verdict plus flags for catch-all servers, invalid MX, and role-based prefixes.
- 4
Split contacts into verified and unverified groups using an n8n filter node.
- 5
Import only verified contacts into your sales engagement tool or CRM.
When to use this
Verify B2B prospect lists before outreach
After pulling a contact batch from DataForB2B, run it through BillionVerify before loading into your sales engagement platform. Remove or flag invalid and catch-all addresses to protect your sending domain from bounce penalties.
Enrich CRM records with deliverability scores
Append BillionVerify's verification verdict to each CRM contact imported from DataForB2B. Sales reps can prioritize verified addresses and avoid wasting time on contacts that will never receive their emails.
FAQ
Why do B2B emails need verification even when sourced from a data provider?
B2B email databases are updated periodically, not in real time. People change jobs, companies rebrand, and domains expire. BillionVerify confirms deliverability at the moment you plan to send.
How does BillionVerify handle catch-all domains common in B2B?
Catch-all servers accept any email, masking whether the individual address is real. BillionVerify identifies these separately so you can apply a conservative sending strategy rather than treating them as confirmed valid.
Can I connect DataForB2B and BillionVerify without coding?
Yes. Integrately offers a 1-click integration path between data tools and BillionVerify. Alternatively, the n8n community node supports building this workflow visually without writing code.
Verify emails in Dataforb2b
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