Gmail AI auto-responder: create draft replies to incoming emails

When I receive an Email

Workflow Structure (8 nodes)
100%
Gmail Trigger
Gmail Trigger
Langchain.chain Llm
Assess if message needs a reply
If
If Needs Reply
Langchain.chain Llm
Generate email reply
Gmail
Gmail - Create Draft
Langchain.lm Chat Open Ai
OpenAI Chat
Langchain.output Parser Structured
JSON Parser
Langchain.lm Chat Open Ai
OpenAI Chat Model
Node Types:
trigger
logic
default
Requires credentials

Prerequisites

Required Credentials (2)

Gmail

Used by: Gmail Trigger, Gmail - Create Draft

Docs

OpenAI

Used by: OpenAI Chat, OpenAI Chat Model

Docs

Complexity

Complex

Advanced features used. Requires n8n experience.

Setup time: ~35 min
Score: 39/100
Conditional Logic

When to Use This Workflow

Streamline Team Communication

Automatically route notifications and updates to the right channels and people.

Reduce information overload while keeping everyone informed.

Email Automation

Automate email responses, forwarding, or organization based on rules.

Handle routine email tasks automatically and focus on what matters.

Real-time Response

React instantly when events happen - new orders, form submissions, or API calls.

Zero delay between trigger and action for time-sensitive workflows.

workflow.json
{
  "id": "aOQANirVMuWrH0ZD",
  "meta": {
    "instanceId": "b78ce2d06ac74b90a581919cf44503cf07404c11eda5c3847597226683145618"
  },
  "name": "Gmail AI auto-responder: create draft replies to incoming emails",
  "tags": [],
  "nodes": [
    {
      "id": "2a9ff08f-919a-41a8-980b-8c2bca3059e4",
      "name": "Gmail Trigger",
      "type": "n8n-nodes-base.gmailTrigger",
      "position": [
        -332.809175564116,
        566.0845437534399
      ],
      "parameters": {
        "simple": false,
        "filters": {
          "q": "-from:me"
...

Workflow Details

Nodes
12
Trigger
Event
Source
awesome
Added
Dec 4, 2025

Need Help?

Check out the official n8n documentation for detailed guides.

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