Automate email management with OpenAI classification, Gmail drafts & Slack alerts
Needs changesNeeds changes. This template uses 1 thing(s) that n8n 3.0 removes: AI Agent v1 (old agent modes). 1 breaking item(s) found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 10 nodes and runs on Gmail events. Along the way it connects Gmail, OpenAI Chat Model and Slack.
How it runs
Trigger: On Gmail events.
- Extract Email Data (Edit Fields (Set)): sets 5 fields: emailId, subject, sender…
- AI Agent: runs an AI agent, with model: OpenAI Chat Model
- Parse AI Classification (Code): runs custom JavaScript code
- Add Classification Label (Gmail): add labels
- Route by Category (Switch): routes items into 4 branches
- Create Draft Response (Gmail): work with draft
- Send Newsletter Summary to Slack (Slack): post message
- Send Action Item Slack Alert (Slack): post message
Services it uses
Before you upgrade to n8n 3.0
1 thing in this workflow is removed in n8n 3.0. Fix it before you upgrade:
- AI Agent v1 (old agent modes) in AI Agent - Email Classifier (v1.7): replace with Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent.
- Also check Gmail Trigger below v1.4 runs as v1.4 (drafts skipped, max emails per poll).
Rather not rewrite it? Many of these flows can be rebuilt in Make (free plan).
| Removed in 3.0 | Replace with |
|---|---|
| AI Agent v1 (old agent modes) AI Agent - Email Classifier (v1.7) | Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent. |
Nodes used (8)
- Gmail Trigger
n8n-nodes-base.gmailTrigger - Edit Fields (Set)
n8n-nodes-base.set - AI Agent
@n8n/n8n-nodes-langchain.agent - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Code
n8n-nodes-base.code - Gmail
n8n-nodes-base.gmail - Switch
n8n-nodes-base.switch - Slack
n8n-nodes-base.slack
From the author
What it does This workflow automatically processes incoming emails with intelligent AI classification, creating draft responses and sending Slack notifications based on email content. How it works 1. Monitors emails with the 'AI-Agent' label 2. AI…