Automation library · AI assistants

Auto-reply to emails with Gemini and SendGrid

Started by an arriving email, and works across Email and SendGrid. It puts Gemini behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 8 steps, 1 branch, 1 loop or waits: small enough to read in one sitting and change without fear.

SmallCalls a model: GeminiRetrieval

8 stepsSmall: readable in one sitting
1Branch: places the flow splits
1Loop or waits
2Services it connects to

The flow

Model 3Logic 3Service 2

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

  1. 1Google Gemini Chat ModelLm Chat Google GeminiModel
  2. 2Simple MemoryMemory Buffer WindowModel
  3. 3Read incoming emailsEmail Read ImapService
  4. 4Generate reply emailAgentModel
  5. 5Pause for 20 secondsWaitLogic
  6. 6Send reply emailSend GridService
  7. 7Set your detailsSetLogic
  8. 8Check if email existsIfLogic

How it's built

Starts on
An arriving email
Steps
8, with 1 branch, 1 loop or waits
Size
Small: readable in one sitting
Connects to
Email, SendGrid
Model
Gemini
Retrieval
Answers are drawn from documents you supply, not from the model alone

Questions

What does it need to run?

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

What starts it?

It starts on an arriving email.

Does it use AI?

Yes. It calls Gemini. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Not long. At 8 steps it can be read in one sitting and changed without fear.

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 8 steps before you point it at anything that matters.