What This Workflow Does
This n8n workflow automates the analysis of email headers to detect potential security threats. It examines incoming email messages via webhook, extracting and analyzing header information to identify suspicious IP addresses and spoofing attempts.
The workflow splits into two main paths based on the presence of the received headers. One path processes emails with complete header information, while the other handles messages with missing or incomplete headers. This dual-path approach ensures comprehensive analysis regardless of email format.
How It Works
1. Email Receipt via Webhook
The workflow begins by receiving email data through a webhook trigger. This allows it to process messages in real-time as they arrive in your system.
2. Header Extraction
The workflow parses the email headers, extracting critical information including sender IP addresses, routing paths, and authentication results (SPF/DKIM/DMARC).
3. IP Analysis
Extracted IP addresses are checked against known threat databases and blacklists. The workflow flags suspicious origins based on geolocation, reputation scores, and other security indicators.
4. Spoofing Detection
The system compares sender information across different header fields to identify inconsistencies that may indicate spoofing attempts.
5. Alert Generation
When threats are detected, the workflow triggers appropriate alerts through your preferred notification channels (email, Slack, etc.) and can optionally quarantine suspicious messages.
Who This Is For
This workflow is ideal for security teams, IT administrators, and business owners concerned about email-based threats. It's particularly valuable for:
- Companies handling sensitive customer data
- Organizations frequently targeted by phishing attacks
- Teams needing to automate security monitoring
- Businesses wanting to improve email authentication
What You'll Need
- An n8n instance (self-hosted or cloud)
- Ability to configure email webhooks
- Access to email server logs or headers
- Optional: Threat intelligence API access for enhanced IP analysis
Quick Setup Guide
- Download the JSON template file
- Import into your n8n instance
- Configure your email webhook endpoint
- Set up notification channels for alerts
- Test with sample email messages
- Deploy to production environment
Pro tip: Combine this workflow with your existing security tools by adding integrations to your SIEM system or ticketing platform for comprehensive threat management.
Key Benefits
Reduce manual security reviews by 80%: Automatically analyze every incoming email without human intervention, freeing your team for higher-value tasks.
Detect threats faster: Real-time analysis means suspicious messages are flagged immediately, reducing exposure windows.
Improve compliance: Automated logging and reporting helps meet security audit requirements for email monitoring.
Customizable detection rules: Easily adjust the workflow to match your specific security policies and threat models.