Crowdpower email verification with BillionVerify
CrowdPower is a marketing automation platform that helps SaaS companies engage, retain, and grow their user base through behavior-triggered campaigns and lifecycle messaging. Connecting BillionVerify ensures every contact in your automation flows has a deliverable email address before a single message is sent.
Why verify before the send
Marketing automation is only as effective as the quality of the list it runs on. Invalid, disposable, or catch-all addresses inflate your metrics, damage sender reputation, and cause campaigns to hit dead inboxes. Verifying contacts with BillionVerify before they enter CrowdPower sequences means your engagement data reflects real users, and your deliverability stays healthy.
Ready-to-use n8n workflow
Import this workflow into n8n — it verifies every address with BillionVerify before Crowdpower sends, so only deliverable contacts are emailed. Install the BillionVerify community node first, then add your API key.
{
"name": "Verify emails before sending in CrowdPower + 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 CrowdPower contacts",
"message": "Replace this Gmail send with your CrowdPower 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 Crowdpower
Ready-to-use workflows that verify emails before Crowdpower sends.
How it works
- 1
Connect BillionVerify to your CrowdPower workflow using the n8n community node, Integrately one-click integration, or direct REST API calls.
- 2
When a new contact enters CrowdPower — from signup, import, or a third-party source — pass their email to BillionVerify for real-time verification.
- 3
BillionVerify checks the address against SMTP validation, disposable provider lists, role-address patterns, and catch-all detection.
- 4
Return the verification result to your automation: add valid contacts to active sequences, suppress invalid ones, and tag catch-all addresses for careful handling.
- 5
Monitor your CrowdPower delivery rates over time to confirm that verification is keeping bounce rates low and inbox placement high.
When to use this
Clean contacts at signup
When a new user registers, trigger a BillionVerify check via n8n or the REST API. Only pass verified, deliverable addresses into CrowdPower so your onboarding sequences reach real users from day one.
Scrub imported lists before campaigns
Before importing a CSV of trial users or leads into CrowdPower, run the list through BillionVerify in bulk. Remove invalid, role-based, and disposable addresses to protect your sending domain and keep campaign metrics honest.
Flag catch-all addresses for separate treatment
BillionVerify identifies catch-all domains that accept all mail but may silently discard it. Segment these contacts in CrowdPower for lower-frequency or lower-stakes messaging to reduce bounce risk.
FAQ
Can I verify emails in real time as users sign up?
Yes. Using the BillionVerify REST API or the n8n community node, you can verify each address the moment it is submitted and decide instantly whether to admit the contact into CrowdPower.
What types of addresses does BillionVerify catch?
BillionVerify detects invalid addresses, disposable or temporary email providers, role addresses like info@ or support@, and catch-all domains that accept but may not deliver mail.
Does bulk verification work for existing CrowdPower contact lists?
Absolutely. Export your contact list, run it through BillionVerify's bulk endpoint, then reimport only the verified addresses. This is recommended before any major campaign launch.
How does email verification protect my sender reputation?
High bounce rates signal to inbox providers that your sending practices are poor, leading to throttling or blacklisting. Removing invalid addresses before sending keeps your bounce rate well below the 2% danger threshold.
Verify emails in Crowdpower
Create a free account, grab your API key, and stop bounces before they happen.
Get started free