Automate Email Security Analysis with n8n
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This n8n workflow automatically analyzes incoming emails to detect potential security threats. It extracts crucial header information, queries IP reputation services, and checks for SPF and DKIM authentication to provide a comprehensive security assessment.
About This Workflow
Gain deeper insights into the security posture of your incoming emails with this powerful n8n workflow. It begins by triggering on new emails in your Outlook inbox, then meticulously retrieves essential headers, including 'Received' and 'Authentication-Results'. The workflow intelligently extracts the original sender's IP address, bypassing private IP ranges, and uses this to query external services like IPQualityScore and ip-api.com for reputation and geolocation data. It also checks for the presence and validity of SPF and DKIM records, crucial for verifying email authenticity. This automated analysis helps identify suspicious emails, phishing attempts, and potential spoofing.
This workflow is designed to be an integral part of a proactive email security strategy, enabling you to quickly assess the risk associated with each incoming message and take appropriate action.
Key Features
- Automated Email Triggering: Seamlessly integrates with Microsoft Outlook to process new emails as they arrive.
- Comprehensive Header Analysis: Extracts and analyzes 'Received' and 'Authentication-Results' headers for detailed origin tracing.
- IP Reputation and Geolocation: Leverages external APIs to fetch reputation scores and location data for sender IPs.
- SPF and DKIM Verification: Checks for the presence and potential validity of SPF and DKIM records.
- Intelligent IP Extraction: Filters out private IP addresses to focus on genuine external sources.
How To Use
- Configure Outlook Trigger: Set up the 'Trigger on New Email' node with your Microsoft Outlook credentials and specify the folder to monitor.
- Retrieve Email Headers: The 'Retrieve Headers of Email' node will automatically fetch specific headers for each incoming email.
- Extract Received Headers: Use the 'Extract Received Headers' code node to isolate the 'Received' header entries.
- Filter Recent Received Headers: Employ the 'Remove Extra Received Headers' limit node to focus on the most recent hop in the email's journey.
- Extract Original Sender IP: The 'Extract Original From IP' set node will extract the most likely originating IP address, excluding private IPs.
- Query IP Reputation: Connect the 'Query IP Quality Score API' node with your IPQualityScore API key to get detailed IP reputation data.
- Query IP Geolocation: Use the 'Query IP API' node to retrieve geographical information for the sender's IP.
- Check Authentication-Results Header: Configure the 'Authentication-Results Header?' IF node to detect the presence of the 'Authentication-Results' header.
- Extract Authentication-Results: If detected, use the 'Extract Authentication-Results Header' code node to parse this crucial information.
- Check SPF Header (Continue Workflow): Further IF nodes can be added to specifically check for SPF and DKIM results and branch your workflow accordingly based on the outcome.
Apps Used
Workflow JSON
{
"id": "285da3f5-9ab6-4417-b546-f824114c0c8a",
"name": "Automate Email Security Analysis with n8n",
"nodes": 27,
"category": "DevOps",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
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ID: 285da3f5-9ab6...
About the Author
Crypto_Watcher
Web3 Developer
Automated trading bots and blockchain monitoring workflows.
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