Monitor Gmail for compliance risks with Google Gemini and Google Sheets
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WeblineIndia
Description
AI-Powered Email Monitoring & Compliance Risk Detection
> Gmail + Gemini + Google Sheets
This workflow automatically monitors incoming Gmail messages, analyzes them using Google Gemini AI for compliance risks (fraud, phishing, data leaks), filters high-confidence threats, logs incidents securely in Google Sheets and sends alert emails to your security team.
Quick Implementation Steps
Connect your Gmail and Google Sheets accounts.
Add your Google Gemini API credentials.
Set the Gmail node to monitor your desired inbox.
Create a Google Sheet with required columns:
Incident_Hash
Incident_Time
Risk_Type
Risk_Confidence
Replace the alert email in the final Gmail node.
Activate the workflow.
That’s it — your AI-powered compliance monitoring system is live!
What It Does
This workflow acts as an intelligent email security and compliance monitoring system. It continuously scans incoming emails and uses AI to detect potential risks such as fraud attempts, phishing emails or sensitive data leaks.
When an email arrives, the system extracts clean text by removing HTML clutter, signatures and hidden elements. This ensures that only relevant content is sent to the AI model, improving both accuracy and cost efficiency.
The workflow then leverages Google Gemini to analyze the email in its original language, eliminating the need for translation. The AI returns a structured JSON response including risk type, severity level, confidence score and reasoning.
To ensure reliability, a custom code node safely parses the AI output using regex and error handling. Based on the detected risk level, the workflow routes the email, filters out low-confidence alerts, logs incidents securely and sends formatted alerts to your compliance or security team.
Who It's For
Compliance teams monitoring sensitive communications
Security teams handling phishing and fraud detection
Enterprises managing high-volume email workflows
Customer support teams dealing with external communications
Organizations requiring audit trails for regulatory compliance
Requirements
To use this workflow, you need:
n8n account (Cloud or Self-hosted)
Google account with:
Gmail access
Google Sheets access
Google Gemini API credentials
A Google Sheet for logging incidents
Basic understanding of n8n workflows
How It Works & How To Set Up
1. Setup Credentials
Connect Gmail OAuth2 in n8n
Connect Google Sheets OAuth2
Add Google Gemini API credentials
2. Configure Gmail Trigger
Node: Catch Incoming Emails
Operation: getAll
Set filters if needed (label, inbox, etc.)
3. Clean Email Content
Node: Strip Email Formatting
Extracts <body> content from HTML
Outputs clean text as clean_body
4. AI Risk Analysis
Node: Analyze Compliance Risk
Uses Google Gemini to analyze:
Subject
Email body
Returns structured JSON:
{
"risk_type": "",
"risk_level": "",
"confidence": 0,
"reason": ""
}
5. Safe Parsing (Critical Step)
Node: Clean & Parse AI Output
Uses:
Regex to extract JSON
try/catch for error handling
Prevents workflow failure if AI output is malformed
6. Prepare Variables
Node: Prep Variables for Routing
Extracts:
risk_type
risk_level
confidence
reason
7. Route Based on Risk
Node: Route by Risk Level
Splits into:
High
Medium
Low
8. Filter False Positives
Node: Block Low-Confidence Alerts
Condition:
confidence > 80
Ensures only high-confidence threats proceed
9. Generate Secure Incident ID
Node: Generate Secure Incident ID
Uses SHA256 hash of:
Sender email
Timestamp
Masks sensitive data (PII)
10. Log to Google Sheets
Node: Save to Audit Log
Appends data:
Incident_Hash
Incident_Time
Risk_Type
Risk_Confidence
11. Format Report
Node: Format AI Report
Converts AI reasoning (Markdown → HTML)
12. Send Alert
Node: Send Security Alert
Sends styled HTML email to your team
Replace:
REPLACE_WITH_YOUR_EMAIL
How To Customize Nodes
Adjust AI Prompt
Modify the prompt in Analyze Compliance Risk
Add custom risk categories or rules
Change Confidence Threshold
Update filter node (default: > 80)
Lower for aggressive detection, higher for stricter filtering
Customize Alert Email
Edit HTML in Send Security Alert
Add branding, logos or additional data
Modify Logging Fields
Extend Google Sheets columns
Add fields like:
Sender
Subject
Department
Add-Ons (Extend Functionality)
Slack / Microsoft Teams alerts instead of email
Dashboard using Power BI or Looker Studio
Auto-response to suspicious emails
Integration with SIEM tools
Store historical data for ML-based trend analysis
Use Case Examples
Detect phishing emails targeting employees
Monitor customer support inbox for fraud attempts
Identify accidental data leaks in outgoing communications
Automate compliance monitoring for regulated industries
Flag suspicious vendor or financial emails
And many more use cases depending on your business needs.
Troubleshooting Guide
| Issue | Possible Cause | Solution |
|------|--------------|---------|
| No emails detected | Gmail trigger not configured | Check Gmail credentials and filters |
| AI output parsing fails | Invalid JSON from AI | Verify Code node logic and prompt format |
| Alerts not sent | Email not configured | Replace recipient email in final node |
| No data in Google Sheets | Sheet mapping incorrect | Verify document ID and column names |
| Too many false alerts | Low confidence threshold | Increase threshold above 80 |
| Workflow crashes | Missing credentials | Reconnect all services |
Need Help?
If you need help setting up this workflow, customizing nodes or building advanced process automation solutions:
Reach out to our n8n workflow developers at WeblineIndia / Global
We can help you with:
Custom workflow development
AI-powered automation solutions
Integration with enterprise tools
Scaling and optimization
Let us help you turn automation into a competitive advantage