# Smart Gmail auto-replies while out of office with OpenAI: n8n workflow

> Started by a clock, and works across Gmail. It hands the judgement calls to OpenAI. 12 steps, 2 branches, 1 loop or waits: a working afternoon to understand...

Source: https://millionrounds.com/workflow/smart-gmail-auto-replies-while-out-of-office-with-openai (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [AI assistants](https://millionrounds.com/workflows?category=AI+assistants#library)

# Smart Gmail auto-replies while out of office with OpenAI

Started by a clock, and works across Gmail. It hands the judgement calls to OpenAI. 12 steps, 2 branches, 1 loop or waits: a working afternoon to understand properly.

Medium Calls a model: OpenAI

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fsmart-gmail-auto-replies-while-out-of-office-with-openai)

**12 steps** Medium: a working afternoon

**2** Branches: places the flow splits

**1** Loop or waits

**1** Service it connects to

## The flow

Starts it 1 Model 3 Logic 4 Service 4

The steps in the order they run, from what starts it.

- 1 **OpenAI Chat Model** Lm Chat Open Ai *Model*
- 2 **Structured Output Parser** Output Parser Structured *Model*
- 3 **Check Email on Schedule** Schedule trigger *Starts it*
- 4 **AI Agent** Agent *Model*
- 5 **Define OOO Dates and Contact** Set *Logic*
- 6 **Decide If Reply Is Needed** If *Logic*
- 7 **Check If Currently OOO** If *Logic*
- 8 **Send AI-Powered Auto-Reply** Gmail *Service*
- 9 **Get Unread Emails** Gmail *Service*
- 10 **Tag Replied Emails** Gmail *Service*
- 11 **Process Each Email** Split In Batches *Logic*
- 12 **Fetch Email Content** Gmail *Service*

## How it's built

- **Starts on:** A clock
- **Steps:** 12, with 2 branches, 1 loop or waits
- **Size:** Medium: a working afternoon
- **Connects to:** Gmail
- **Model:** OpenAI

## Questions

What does it need to run?

An n8n account, plus your own Gmail account, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on a clock.

Does it use AI?

Yes. It calls OpenAI. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 12 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 12 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fsmart-gmail-auto-replies-while-out-of-office-with-openai)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Gmail](https://millionrounds.com/workflows?service=Gmail#library)

## Workflows like it

Also ai assistants, with the same services where possible, closest in size first.

- [**AI email autoresponder with OpenAI and Gmail** 12 steps · calls a model · Email, Gmail](https://millionrounds.com/workflow/ai-email-autoresponder-with-openai-and-gmail)
- [**AI-powered email processing autoresponder** 12 steps · calls a model · Email, Gmail](https://millionrounds.com/workflow/ai-powered-email-processing-autoresponder)
- [**AI-powered email processing autoresponder** 12 steps · calls a model · Email, Gmail](https://millionrounds.com/workflow/ai-powered-email-processing-autoresponder-2)
- [**Automate email management with Gemini and Gmail** 12 steps · calls a model · Gmail](https://millionrounds.com/workflow/automate-email-management-with-gemini-and-gmail)
- [**Automated Client Intake & Job Description Generator** 12 steps · calls a model · Gmail, Google Drive](https://millionrounds.com/workflow/automated-client-intake-and-job-description-generator)
- [**Autoreply email and add to label with OpenAI and Gmail** 12 steps · calls a model · Gmail](https://millionrounds.com/workflow/autoreply-email-and-add-to-label-with-openai-and-gmail)