This article provides a complete, practical walkthrough of the Code Slack Send Webhook n8n agent. It connects HTTP Request, Webhook across approximately 1 node(s). Expect a Intermediate setup in 15-45 minutes. One‑time purchase: €29.

What This Agent Does

This agent orchestrates a reliable automation between HTTP Request, Webhook, handling triggers, data enrichment, and delivery with guardrails for errors and rate limits.

It streamlines multi‑step processes that would otherwise require manual exports, spreadsheet cleanup, and repeated API requests. By centralizing logic in n8n, it reduces context switching, lowers error rates, and ensures consistent results across teams.

Typical outcomes include faster lead handoffs, automated notifications, accurate data synchronization, and better visibility via execution logs and optional Slack/Email alerts.

How It Works

The workflow uses standard n8n building blocks like Webhook or Schedule triggers, HTTP Request for API calls, and control nodes (IF, Merge, Set) to validate inputs, branch on conditions, and format outputs. Retries and timeouts improve resilience, while credentials keep secrets safe.

Third‑Party Integrations

• HTTP Request
• Webhook

Import and Use in n8n

1. Open n8n and create a new workflow or collection.
2. Choose Import from File or Paste JSON.
3. Paste the JSON below, then click Import.
4. Show n8n JSON

   Title:
   Automated Email Threat Detection with n8n and Sublime Security: A Complete Workflow Guide
   
   Meta Description:
   Discover how to automate and enhance your email security operations using an n8n workflow integrated with Sublime Security and Slack. Learn how phishing attempts are detected, analyzed, and communicated in real time.
   
   Keywords:
   n8n, security automation, email threat detection, phishing, incident response, Sublime Security, Slack integration, SOC automation, email analysis, IMAP workflow, automation tools, .eml file analysis
   
   Third-Party APIs Used:
   - Sublime Security API (for email threat analysis)
   - Slack API (for team notifications and reporting)
   
   —
   
   
   Article:
   
   In today’s fast-evolving threat landscape, organizations are constantly seeking ways to automate their Security Operations Center (SOC) workflows for faster response and more accurate threat detection. A recent n8n workflow titled Receive_and_analyze_emails_with_rules_in_Sublime_Security showcases a practical and powerful solution for automating phishing attack response using a blend of email retrieval, third-party security analysis, and seamless team communication.
   
   Let’s break down how this workflow works and why it’s critical for enhancing your cybersecurity response.
   
   Streamlined Email Ingestion via IMAP
   
   The workflow begins with the n8n IMAP email trigger node, which is configured to monitor a specified inbox – typically one reserved for phishing reports submitted by users through platforms like Microsoft Outlook. These emails are generally routed to a shared mailbox where messages are transformed into .eml file attachments. The IMAP trigger retrieves these emails in real time and parses them for potential analysis.
   
   This first step ensures that every reported phishing email is immediately integrated into the automated pipeline, removing the need for manual security analyst intervention and significantly reducing time to detection.
   
   Attachment Validation and Routing
   
   Once an email is received, the workflow checks for the presence of an attachment using a conditional "IF" node. It ensures two main criteria are met:
   
   - The email contains an attachment.
   - The attachment is of MIME type message/rfc822 (i.e., a complete email file, like .eml).
   
   If no attachment is found, the workflow triggers a Slack notification alerting the security team of the anomaly. This proactive design ensures no reported threat slips through unnoticed due to formatting issues or improper submission.
   
   For emails with valid attachments, the file data is moved and encoded into a base64 string using the "Move Binary Data" node—preparing it for analysis.
   
   AI-Powered Threat Analysis with Sublime Security
   
   The critical analysis phase is performed via a POST request to the Sublime Security API. The raw base64-encoded email is sent to this endpoint with the instruction to run all active detection rules.
   
   Sublime Security returns a powerful breakdown of the email’s content, rule matches, and any indicators of compromise (IoCs). Each rule checked by Sublime includes metadata such as rule ID, name, execution time, and whether the detection was successful or not.
   
   Data Processing and Visualization for Decision-Making
   
   n8n then uses a simple JavaScript function (via the Code node) to split the received rule results into two categories: matched and unmatched. This ensures that only the relevant signals (matched detections) draw attention.
   
   Following that, the workflow formats this data into a readable report string that highlights:
   
   - The number of matched rules
   - A summary of rule names that triggered
   - A ratio of matched vs. total rules analyzed
   
   This granular reporting is key in helping SOC teams gauge the severity of threats within seconds.
   
   Real-Time Slack Notifications for Team Awareness
   
   In the final stages of the workflow, the formatted data is dispatched directly into a Slack channel. This ensures transparency, immediate notification, and a streamlined decision-making process.
   
   Notably, if the workflow detects that no attachment was provided, a separate Slack notification is sent to alert the response team that manual investigation may be needed.
   
   Putting It All Together
   
   This n8n workflow acts as an automated security analyst, continuously on-call to:
   - Ingest email reports with zero manual effort
   - Verify the presence and structure of threat indicators
   - Analyze the .eml file with enterprise-grade detection rules from Sublime Security
   - Communicate findings directly into SOC playbooks and Slack channels
   
   By combining n8n, Sublime Security, and Slack into a cohesive workflow, security teams gain a highly scalable, real-time threat detection and response system that cuts down triaging times and improves overall incident response.
   
   For any organization that takes user-reported phishing seriously, this workflow provides a game-changing application of automation that’s both simple to deploy and impactful to execute.
   
   — 
   
   For cybersecurity professionals and platform engineers, this is more than automation. It’s modern incident response made scalable, transparent, and intelligent.
   
   Ready to build it yourself? Check out n8n.io and explore powerful integrations like this one to supercharge your SOC.

5. Set credentials for each API node (keys, OAuth) in Credentials.
6. Run a test via Execute Workflow. Inspect Run Data, then adjust parameters.
7. Enable the workflow to run on schedule, webhook, or triggers as configured.

Tips: keep secrets in credentials, add retries and timeouts on HTTP nodes, implement error notifications, and paginate large API fetches.

Validation: use IF/Code nodes to sanitize inputs and guard against empty payloads.

Why Automate This with AI Agents

AI‑assisted automations offload repetitive, error‑prone tasks to a predictable workflow. Instead of manual copy‑paste and ad‑hoc scripts, your team gets a governed pipeline with versioned state, auditability, and observable runs.

n8n’s node graph makes data flow transparent while AI‑powered enrichment (classification, extraction, summarization) boosts throughput and consistency. Teams reclaim time, reduce operational costs, and standardize best practices without sacrificing flexibility.

Compared to one‑off integrations, an AI agent is easier to extend: swap APIs, add filters, or bolt on notifications without rewriting everything. You get reliability, control, and a faster path from idea to production.

Best Practices

• Credentials: restrict scopes and rotate tokens regularly.
• Resilience: configure retries, timeouts, and backoff for API nodes.
• Data Quality: validate inputs; normalize fields early to reduce downstream branching.
• Performance: batch records and paginate for large datasets.
• Observability: add failure alerts (Email/Slack) and persistent logs for auditing.
• Security: avoid sensitive data in logs; use environment variables and n8n credentials.

FAQs

Can I swap integrations later? Yes. Replace or add nodes and re‑map fields without rebuilding the whole flow.

How do I monitor failures? Use Execution logs and add notifications on the Error Trigger path.

Does it scale? Use queues, batching, and sub‑workflows to split responsibilities and control load.

Is my data safe? Keep secrets in Credentials, restrict token scopes, and review access logs.