Auto-respond to Gmail enquiries using GPT-4o, Dumpling AI & LangChain agent

Who is this for?

This workflow is perfect for customer support teams, sales departments, or solopreneurs who receive frequent email enquiries and want to automate the initial response process using AI. If you spend too much time answering similar questions, this system helps respond faster and more intelligently—without writing a single line of code.

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What problem is this workflow solving?

Manually responding to repeated customer enquiries slows productivity and increases delay. This workflow classifies if an incoming email is a real enquiry, analyzes the content with a LangChain-powered agent, fetches helpful context using Dumpling AI, and sends a personalized reply using Gmail—all within minutes.

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What this workflow does

1. Listens for new incoming Gmail messages using the Gmail Trigger node. 2. Classifies whether the email is an enquiry using a GPT-4o classification prompt. 3. Uses a Filter node to continue only if the email was classified as an enquiry. 4. Passes the email content to a LangChain Agent, enhanced with memory, AI tools, and Dumpling AI to search for relevant information. 5. The agent constructs a smart, relevant response, then sends it to the original sender via Gmail.