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Automate email management with OpenAI classification, Gmail drafts & Slack alerts

Fabian ZNTLFabian ZNTL
1297 views
2/3/2026
ExportProductsShopifyAPICSV
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What it does

This workflow automatically processes incoming emails with intelligent AI classification, creating draft responses and sending Slack notifications based on email content.

How it works

  1. Monitors emails with the 'AI-Agent' label
  2. AI classification into categories: Inquiry, Support, Newsletter, Action Item
  3. Adds appropriate labels to emails automatically
  4. Creates draft replies for Support and Inquiry emails
  5. Sends Slack notifications for Action Items and Newsletter summaries

Setup Requirements

  • Gmail OAuth2 credentials configured
  • OpenAI API credentials (or other AI provider)
  • Slack OAuth2 credentials (if notifications desired)
  • Gmail labels created (see setup instructions below)

How to customize

  • Modify classification categories in the AI Agent
  • Adjust label mappings in the Parse Classification node
  • Customize draft response templates
  • Configure different Slack channels for different email types

Automate Email Management with OpenAI Classification, Gmail Drafts, and Slack Alerts

This n8n workflow automates the process of classifying incoming emails using OpenAI, generating draft replies in Gmail, and sending Slack notifications for specific email categories. It helps streamline email management, ensuring important emails are handled efficiently and team members are promptly informed.

What it does

  1. Triggers on New Emails: Listens for new emails in your Gmail inbox.
  2. Extracts Email Content: Retrieves the subject and body of the incoming email.
  3. Classifies Email with AI: Uses an OpenAI Chat Model to classify the email content into predefined categories (e.g., "Urgent," "Information," "Spam," "General Inquiry").
  4. Routes Based on Classification: A Switch node directs the workflow based on the AI-generated classification.
  5. Generates Gmail Drafts:
    • For "Urgent" emails, it generates a draft reply in Gmail, indicating the email is urgent.
    • For "General Inquiry" emails, it generates a draft reply in Gmail, indicating it's a general inquiry.
  6. Sends Slack Alerts:
    • For "Urgent" emails, it sends a Slack message to a designated channel, alerting the team about the urgent email and its content.
    • For "Spam" emails, it sends a Slack message to a designated channel, notifying about a detected spam email.
  7. Handles Other Categories: For other classifications like "Information," "General Inquiry", or unclassified emails, the workflow can be extended to handle them as needed (e.g., log them, mark as read, etc.).

Prerequisites/Requirements

  • n8n Account: A running n8n instance.
  • Gmail Account: Connected to n8n with appropriate credentials for reading emails and creating drafts.
  • OpenAI API Key: For the OpenAI Chat Model node to classify emails.
  • Slack Account: Connected to n8n with appropriate credentials for sending messages to a channel.

Setup/Usage

  1. Import the Workflow: Import the provided JSON into your n8n instance.
  2. Configure Credentials:
    • Gmail Trigger: Set up your Gmail OAuth2 credentials to allow n8n to access your inbox.
    • OpenAI Chat Model: Configure your OpenAI API key credential.
    • Gmail (Drafts): Use the same Gmail OAuth2 credentials to create drafts.
    • Slack: Set up your Slack API credentials to allow n8n to post messages.
  3. Customize AI Agent (Optional but Recommended):
    • Review the AI Agent node. You might want to refine the prompt for the OpenAI model to better suit your specific email classification needs and categories.
  4. Configure Slack Channels:
    • In the Slack nodes, specify the Slack channel IDs where you want to receive alerts for "Urgent" and "Spam" emails.
  5. Activate the Workflow: Once configured, activate the workflow to start processing new emails.

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