AutomationMart
Home/Browse/AI-powered email replies with spam filtering & FAQ lookup using GPT-4o mini & Pinecone
n8n

AI-powered email replies with spam filtering & FAQ lookup using GPT-4o mini & Pinecone

n8nn8n10 modulesv1.0
GmailOpenAI

This n8n workflow automates the handling of incoming emails. It detects and filters out spam, searches a knowledge base (FAQ) stored in a Pinecone vector database, and sends a reply using Gmail — all powered by an AI model (GPT-4o mini). How It Works 1. Receiving Emails - The Gmail Trigger node checks a Gmail inbox every hour. - When a new email arrives, it starts the workflow. 2. Fetching Full Email Content - The getmessage node retrieves all the details of the message: sender, subject, text, m

At a glance

AI-powered email replies with spam filtering & FAQ lookup using GPT-4o mini & Pinecone is a ready-made n8n workflow you import as a workflow JSON file — no build required. It connects Gmail, OpenAI. It's free to download. Follow the 5-step import below to go live in minutes.

Platform
n8n
Connects
Gmail, OpenAI
Modules
10
Price
Free
Version
v1.0
AI-powered email replies with spam filtering & FAQ lookup using GPT-4o mini & Pinecone workflow diagram

About this workflow

This n8n workflow automates the handling of incoming emails. It detects and filters out spam, searches a knowledge base (FAQ) stored in a Pinecone vector database, and sends a reply using Gmail — all powered by an AI model (GPT-4o mini). How It Works 1. Receiving Emails - The Gmail Trigger node checks a Gmail inbox every hour. - When a new email arrives, it starts the workflow. 2. Fetching Full Email Content - The getmessage node retrieves all the details of the message: sender, subject, text, message ID, etc. 3. Spam Filtering - The Spam checker node uses GPT-4o mini to classify the email as either "spam" or "no spam". - It detects not only classic spam but also automated messages (e.g. from Google or Microsoft). - If marked as "spam", the workflow ends and nothing is processed. 4. Conditional Filter - The If node checks the spam result. - Only "no spam" emails proceed to the AI Agent. 5. AI-Based Reply - The AI Agent node generates a response based on: - The email content - A system prompt defining the assistant’s behavior (polite, professional, under the name “Total AI Solutions”) - Information retrieved from the Pinecone Vector Store, which contains FAQs - The AI is instructed to always check the vector store before replying. - The AI prepares both the subject and the body of the reply. 6. Sending the Reply - The Gmail node sends the reply to the original sender. - It uses the original email's ID to keep the thread intact. 7. Language Model - The OpenAI Chat Model node provides GPT-4o mini as the language engine for generating responses. 8. Memory Support - The Simple Memory node maintains short-term context, helpful in multi-turn conversations. 9. Knowledge Base (FAQ) - The Pinecone Vector Store node connects to a Pinecone index (faqmattabott) containing vectorized FAQ content. - Vectors are created using the Embeddings OpenAI node.

n8n

How to import this n8n workflow

  1. 1

    Download the workflow JSON file after purchase.

  2. 2

    Open n8n → click the menu → Import from File.

  3. 3

    Select the downloaded JSON and import.

  4. 4

    Set up credentials for each node that requires them.

  5. 5

    Click Execute Workflow to test, then activate.

Setup guide

Setup guide included

Purchase to unlock the full step-by-step guide

Related N8n workflows

Generate weekly Instagram Reels ideas from Google News with OpenAI and Notion

This n8n workflow automatically generates weekly Instagram Reel content ideas for a D2C brand using fresh Google News trends. In this example, the workflow is configured for a skincare brand called GlowCare, but it can be reused for any D2C brand by simply changing the RSS URL and updating the brand details inside the AI prompt. Any D2C brand can use this workflow by simply changing the Google News RSS URL based on their niche. For example: - Skincare brand → skincare trends, skincare routine, s

Free

Activate and deactivate workflows on schedule using native n8n API

How it works This workflow will activate and deactivate a selected other workflow on schedule. > ⚠️ Warning! > This approach won't work for trial users as it requires n8n API that is not available to trial users. > See for details. Set up steps 1. Adjust activation/deactivation schedule per your needs. Custom (cron) interval is a recommended approach. 2. Set targeted Workflow ID. You will find it in the URL of the workflow you want to manage. 3. Set n8n API credentials: - Create an API

Free

Send personalized hotel pre-arrival messages using OpenAI, Google Sheets and Slack

Description This workflow automates a personalized pre-arrival guest experience for hotels by combining Google Sheets, OpenAI, Email, and Slack. It detects upcoming check-ins, maintains unified guest profiles for new and returning guests, and sends warm, AI-generated welcome messages exactly 2 days before arrival, ensuring a premium, consistent experience without manual effort. ⚠️ Deployment Disclaimer This workflow is intended for self-hosted n8n instances. ⚙️ What This Workflow Does (Step-by-

Free

Extract and save new articles to Google Sheets using OpenAI and HTML conversion

Automatically extract new articles from RSS feeds, convert HTML to text, summarize with OpenAI, and save to Google Sheets for easy access.

Free

Manage calendar with voice & text using GPT-4, Telegram & Google Calendar

Manage Calendar with Voice & Text Commands using GPT-4, Telegram & Google Calendar This n8n workflow transforms your Telegram bot into a personal AI calendar assistant, capable of understanding both voice and text commands in Romanian, and managing your Google Calendar using the GPT-4 model via LangChain. Whether you want to create, update, fetch, or delete events, you can simply speak or write your request to your Telegram bot — and the assistant takes care of the rest.

Free

Save new Gmail attachments to Google Drive

Automatically save incoming Gmail attachments in your Google Drive!

Free

Manage coupon campaigns and customer chats with WhatsApp and PostgreSQL

Coupon Bot Dashboard & WhatsApp Management System A complete bilingual admin dashboard and WhatsApp bot solution for managing discount coupons, partner companies, and customer conversations through an intuitive web interface and automated chatbot. What does this workflow do? This workflow provides a comprehensive coupon management system with dual interfaces: a modern Vue.js admin dashboard for managers and an interactive WhatsApp bot for customers. It handles everything from company onboarding

Free

Search & summarize web data with Perplexity, Gemini AI & Bright Data to webhooks

Who this is for? This workflow is designed for professionals and teams who need real-time, structured insights from Perplexity Search results without manual effort. What problem is this workflow solving? This n8n workflow solves the problem of automating Perplexity Search result extraction, cleanup, summarization, and AI-enhanced formatting for downstream use like sending the results to a webhook or another system. What this workflow does 1. Automates Perplexity Search via Bright Data - Uses B

Free

Reviews

No reviews yet

Be the first to buy and share your experience.

Leave a review

Sign in to share your experience with this workflow.

Log in to review
Free
No ratings yet

Create a free account to purchase workflows.

  • JSON blueprint — instant download
  • Setup guide PDF included
  • 5 downloads · valid 30 days
  • Works with n8n

Need help setting this up?

Book a 3-hour live setup session with an Agility consultant.

₹2,499/ session
3 hrs · video call
  • Configure live on Google Meet / Zoom
  • Free follow-up if workflow has defects
  • Platform expert assigned to you
Book installation session
Free