Dealfront email verification with BillionVerify
Dealfront is a sales intelligence and lead generation platform that surfaces B2B prospects for outbound sales teams. BillionVerify adds an email verification layer so that every contact email exported from Dealfront is validated before it enters your outreach sequences, protecting your sender reputation and maximizing reply rates.
Why verify before the send
Sales intelligence data ages quickly. Contacts change jobs, domains expire, and inboxes close. Sending cold outreach to stale or invalid addresses generates bounces that damage your domain's deliverability and can get you blocked by email providers. BillionVerify validates Dealfront leads in real time, so your SDRs only work emails that are actually reachable.
Ready-to-use n8n workflow
Import this workflow into n8n — it verifies every address with BillionVerify before Dealfront sends, so only deliverable contacts are emailed. Install the BillionVerify community node first, then add your API key.
{
"name": "Verify emails before sending in Dealfront + 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 Dealfront contacts",
"message": "Replace this Gmail send with your Dealfront 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 Dealfront
Ready-to-use workflows that verify emails before Dealfront sends.
How it works
- 1
Dealfront exports a batch of prospect contacts including email addresses.
- 2
An n8n workflow or Integrately automation sends each email to BillionVerify for validation.
- 3
BillionVerify checks each address for validity, domain health, disposable status, role-based patterns, and SMTP reachability.
- 4
Valid contacts are passed to your CRM or sequencing tool; invalid or risky addresses are quarantined for manual review.
- 5
Your outreach sequences run against a clean list, improving delivery rates and protecting your sending domain.
When to use this
Pre-sequence email validation
Before enrolling a Dealfront prospect in a cold email sequence, verify the address. Removing invalid and catch-all emails reduces bounce rates and keeps your sending domain off blocklists.
CRM import hygiene
When syncing Dealfront leads into your CRM, run verification as part of the import workflow. Only validated contacts are stored, preventing low-quality data from polluting your sales pipeline.
High-volume prospecting at scale
Outbound teams exporting large lead lists from Dealfront can batch-verify thousands of addresses overnight, flagging disposable or role-based emails before a campaign launch.
FAQ
How current is BillionVerify's data for B2B email addresses?
BillionVerify performs live SMTP checks against the target mail server rather than relying solely on static databases, giving you the most up-to-date deliverability verdict available.
Can I verify Dealfront exports in bulk rather than one at a time?
Yes. BillionVerify supports bulk verification via its REST API, letting you submit an entire exported list and retrieve results asynchronously — ideal for large Dealfront exports.
What is a role-based address and why should I filter them?
Role-based addresses like sales@ or info@ are monitored by multiple people or automated systems. They often have lower engagement and higher complaint rates, making them poor targets for personalized cold outreach.
Does verifying emails before outreach guarantee delivery?
Verification significantly reduces bounces by removing addresses that are structurally invalid or confirmed unreachable, but it cannot guarantee inbox placement, which also depends on content and sender reputation.
Verify emails in Dealfront
Create a free account, grab your API key, and stop bounces before they happen.
Get started free