✨ Smart AI-Powered Customer Support Auto-Responder for Gmail

# Gmail Customer Support Auto-Responder with Ollama LLM and Pinecone RAG

**Built by Setidure Technologies**  

Automate intelligent, friendly replies to customer queries using AI, vector search, and Gmail — all without human effort.

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## Overview

This is a ready-to-deploy smart customer support automation template for businesses that want to reply to emails instantly and accurately with the warmth of a human agent.  

It uses **Gmail**, **LangChain agents**, **Ollama-hosted LLMs**, and **Pinecone vector search** to craft contextual, brand-aligned replies at scale.

> **Note:** This template uses community nodes and requires a **self-hosted n8n instance**.

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## What the Workflow Does

### 1. Triggers on Incoming Emails  

- Uses Gmail Trigger node to listen for new messages  

- Activates every minute to ensure fast responses

### 2. Classifies Email Intent  

- A LangChain Text Classifier detects whether the email is a Customer Support query  

- Non-relevant emails are skipped

### 3. Generates AI Response  

- An AI Agent powered by Ollama generates the email reply  

- Follows a predefined tone: "Mr. Aashit Sharma from Setidure Technologies"  

- Written in a warm, human tone with natural phrasing

### 4. Retrieves FAQ-Based Knowledge  

- Connects to Pinecone vector database for real-time FAQ retrieval  

- Enhances responses with specific, accurate product or policy information

### 5. Labels Email in Gmail  

- Automatically tags emails with labels like `Handled` or `Auto-Replied` for easy tracking

### 6. Sends Email Reply  

- Sends the generated response back to the customer  

- Includes personal sign-off and clean formatting

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## Tech Stack Used

- Gmail Trigger & Send Nodes  

- LangChain AI Agent & Classifier  

- Ollama LLMs (e.g., phi4, llama3)  

- Pinecone Vector Store  

- Custom Prompts for Brand Persona  

- Local Embeddings using Ollama

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## Key Features

- Fully automated — no human action needed  

- Local LLMs ensure data privacy  

- Real-time answers powered by vector search  

- Brand-personality aligned tone  

- Organized inbox with Gmail labels

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## Best For

- Startups scaling support with limited staff  

- SaaS companies or e-commerce businesses  

- Privacy-conscious enterprises using local LLMs  

- Teams building branded auto-communication workflows

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## Customization Tips

- Modify AI prompt to reflect your brand's voice and tone  

- Expand classifier for more email categories  

- Replace Gmail output with Slack, Notion, or your CRM  

- Update Pinecone FAQ index to match evolving support content

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## Example Output