Contextual AI email verification with BillionVerify
Contextual AI is an enterprise AI platform focused on retrieval-augmented generation and knowledge-grounded AI applications. When Contextual AI workflows involve sending results, alerts, or reports to users by email, BillionVerify ensures those addresses are valid before any communication is attempted.
Why verify before the send
Enterprise AI pipelines that deliver insights or notifications by email must reach real inboxes to be useful. A single invalid address in an automated report distribution list means a stakeholder misses critical information. BillionVerify validates every recipient address upfront, catching invalid, role-based, and catch-all emails before your AI outputs go undelivered.
Ready-to-use n8n workflow
Import this workflow into n8n — it verifies every address with BillionVerify before Contextual AI sends, so only deliverable contacts are emailed. Install the BillionVerify community node first, then add your API key.
{
"name": "Verify emails before sending in Contextual AI + 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 Contextual AI contacts",
"message": "Replace this Gmail send with your Contextual AI 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 Contextual AI
Ready-to-use workflows that verify emails before Contextual AI sends.
How it works
- 1
Integrate BillionVerify into your Contextual AI pipeline via the REST API, n8n community node, or an Integrately workflow.
- 2
Trigger email verification at the point of user registration or before each scheduled report delivery.
- 3
BillionVerify validates address syntax, checks DNS and MX records, identifies disposable or role-based addresses, and flags catch-all domains.
- 4
Only addresses that pass verification receive the AI-generated output; invalid ones trigger an alert for the admin team.
- 5
AI insights reach real stakeholders on time, and your platform's notification reliability stays high.
When to use this
Validate user emails before AI-generated report delivery
When Contextual AI produces summaries or insights destined for email distribution, verify each recipient address with BillionVerify first. This ensures that AI-generated intelligence actually reaches the intended decision-makers.
Screen enterprise user sign-ups for AI platform access
When onboarding new users to an AI platform powered by Contextual AI, verify their corporate email addresses through BillionVerify to block disposable or invalid entries and ensure only legitimate users gain access.
FAQ
Why is email verification important for an enterprise AI platform?
Enterprise AI platforms often send automated insights and alerts to many stakeholders. Invalid addresses cause missed communications, and repeated bounces can affect your domain's ability to send future emails reliably.
Can BillionVerify verify corporate email addresses that might be on catch-all domains?
Yes. BillionVerify specifically detects catch-all domains and marks them as risky, so you can decide whether to accept, flag, or exclude those addresses from automated delivery.
Is the BillionVerify REST API suitable for integration with AI workflow pipelines?
Absolutely. The REST API is designed for programmatic use and integrates cleanly into any data pipeline, including those built on enterprise AI platforms like Contextual AI.
How does BillionVerify handle role-based email addresses like admin@ or info@?
Role addresses are flagged automatically. These addresses typically route to shared inboxes rather than individuals, making them poor targets for personalized AI-generated reports or alerts.
Verify emails in Contextual AI
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