Automated Gmail Classification and Labeling with GPT-4, Sheets and Slack Alerts

This n8n template automates email labeling using AI-enhanced classification and intelligent routing

Gmail users report spending significant time manually sorting email, so this tool helps alleviate that burden.

How it works

• Gmail Trigger monitors unread emails every 2 minutes
• Once an email arrives, the content is extracted with HTML cleaning
• AI Agent (the node is set for Chat GPT-4) is used for classification & entity extraction
• A Structured Output Parser parses the email to JSON
• A 9-way category routing system categorizes the email (Inquiry, Support, Newsletter, Marketing, Personal, Urgent, Spam, Invoice, Meeting)
• Gmail auto-labeling is used for each category
• Google Sheets is used for logging (the main log that includes all emails and  an error log which are emails that cannot be classified)
• Slack alerts are generated for high-priority/urgent emails
• Error handling is done with separate error logging in Google Sheets

How to use

• Set up credentials for Google Gmail, LLM (ChatGPT, Gemini, etc.), Google Sheets, and Slack
• Modify the categories as needed per user preference

Requirements

• Gmail
• Any LLM like ChatGPT or Google Gemini
• Google Drive with Google Sheets is optional for logging and error handling
• Slack is optional for high-priority messages