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Gmail AI Auto-Responder: Create Draft Replies to incoming emails

by Nicolas Chourroutadapted from n8n official workflow galleryUpdated Aug 2026
RequiresBBasic LLM ChainGmailGmailOpenAI Chat ModelOpenAI Chat ModelStructured Output ParserStructured Output Parser
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Gmail TriggerIfIf Needs ReplyOPJSON ParserOpenAI ChatOpenAI Chat ModelOpenAI Chat Mod…Gmail - Create DraftGmail - Create …CLAssess if message needs a replyAssess if messa…CLGenerate email replyGenerate email …1234567
1/5
STEPS · 7
Starts on a Gmail event

This workflow automatically generates draft replies in Gmail. It's designed for anyone who manages a high volume of emails or often face writer's block when crafting responses. Since it doesn't send the generated message directly, you're still in charge of editing and approving emails before they go out. How It Works: Email Trigger: activates when new emails reach the Gmail inbox Assessment: uses OpenAI gpt-4o and a JSON parser to determine if a response is necessary. Reply Generation: crafts a reply with OpenAI GPT-4 Turbo Draft Integration: after converting the text to html, it places the draft into the Gmail thread as a reply to the first message Set Up Overview (~10 minutes): OAuth Configuration (follow n8n instructions here): Setup Google OAuth in Google Cloud console. Make sure to add Gmail API with the modify scope. Add Google OAuth credentials in n8n. Make sure to add the n8n redirect URI to the Google Cloud Console consent screen settings.

Tags

n8nreference-onlychain-llmgmaillm-chat-open-aioutput-parser-structured
Connects
BBasic LLM ChaingmailGmailopenaichatmodelOpenAI Chat ModelstructuredoutputparserStructured Output Parser
CategoryAI Automation
Triggermanual
Complexitymedium
Nodes8
AddedMay 19, 2024

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