BreakCold email verification with BillionVerify
Breakcold is a social-selling CRM built for cold outreach, letting sales teams track prospects across LinkedIn and email in one pipeline. Adding BillionVerify to your Breakcold workflow ensures every email address you load into your pipeline is deliverable before you send a single message.
Why verify before the send
Cold outreach lives or dies on deliverability. Invalid addresses, disposable inboxes, and role-based emails inflate your bounce rate, damage your sending domain, and bury your messages in spam folders. Verifying contacts with BillionVerify before they enter Breakcold keeps your pipeline clean and your sender reputation intact.
Ready-to-use n8n workflow
Import this workflow into n8n — it verifies every address with BillionVerify before BreakCold sends, so only deliverable contacts are emailed. Install the BillionVerify community node first, then add your API key.
{
"name": "Verify emails before sending in Breakcold + 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 Breakcold contacts",
"message": "Replace this Gmail send with your Breakcold 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 BreakCold
Ready-to-use workflows that verify emails before BreakCold sends.
How it works
- 1
Connect BillionVerify to your workflow using the n8n community node, Integrately, or the REST API.
- 2
Trigger verification whenever a new contact is added to Breakcold or imported from an external source.
- 3
BillionVerify checks syntax, DNS, MX records, SMTP reachability, and flags disposable, role-based, and catch-all addresses.
- 4
Route contacts with a 'valid' result into your active Breakcold sequences; quarantine or discard the rest.
- 5
Monitor your verification logs to track list quality trends over time.
When to use this
Scrape-to-Pipeline Hygiene
When you import a prospect list into Breakcold from a lead scraper or CSV export, run each address through BillionVerify first. Remove invalid, disposable, and catch-all results so only genuinely reachable contacts enter your outreach sequences.
LinkedIn Enrichment Validation
After enriching a LinkedIn prospect with a guessed or found email, verify it in real time via BillionVerify before adding it to a Breakcold campaign. Catch undeliverable addresses at the enrichment stage rather than after your first bounce.
FAQ
Does BillionVerify integrate directly with Breakcold?
Yes — connect them via the n8n community node, Integrately's 1-click setup, or by calling BillionVerify's REST API from any automation that handles your Breakcold data.
What types of addresses does BillionVerify catch?
BillionVerify detects invalid, disposable, role-based (info@, sales@), and catch-all addresses, plus checks MX records and SMTP reachability to give you a clear deliverability verdict.
Will this slow down my prospecting workflow?
Single-address verification typically returns in under a second. Bulk lists run in parallel, so even large imports add only a short pre-send delay that pays for itself in avoided bounces.
What happens to addresses flagged as catch-all?
Catch-all domains accept all incoming mail at the server level, so deliverability is uncertain. You can filter them out entirely or keep them in a lower-priority sequence based on your risk tolerance.
Verify emails in BreakCold
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