Automation library · Customer support

Classify Gmail support emails with a local model and Postgres

Started by an arriving email, and works across Gmail and Postgres. It hands the judgement calls to a local model. 16 steps: a working afternoon to understand properly.

MediumCalls a model: a local model

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16 stepsMedium: a working afternoon
0Branches: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 1Model 2Logic 7Service 6

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

  1. 1Ollama ModelLm OllamaModel
  2. 2Gmail TriggerGmail triggerStarts it
  3. 3Text ClassifierText ClassifierModel
  4. 4Get many messagesGmailService
  5. 5Code in JavaScript1CodeLogic
  6. 6Code in JavaScript2CodeLogic
  7. 7Code in JavaScript3CodeLogic
  8. 8Code in JavaScript4CodeLogic
  9. 9Code in JavaScript5CodeLogic
  10. 10Code in JavaScriptCodeLogic
  11. 11Select rows from a tablePostgresService
  12. 12Insert rows in a tablePostgresService
  13. 13Update rows in a tablePostgresService
  14. 14Insert rows in a table1PostgresService
  15. 15Reply to a messageGmailService
  16. 16No Operation, do nothingNo OpLogic

How it's built

Starts on
An arriving email
Steps
16
Size
Medium: a working afternoon
Connects to
Gmail, Postgres
Model
a local model

Questions

What does it need to run?

An n8n account, plus your own Gmail and Postgres accounts, and a key for a local model. 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 a local model. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 16 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 16 steps before you point it at anything that matters.