Automation library · CRM

Gmail campaign sender: Bulk-send emails and follow up if no reply

Started by a clock, and works across Gmail and Google Sheets. 25 steps, 1 branch: large, and worth reading before you trust it with anything live.

Large

25 stepsLarge: read it before trusting it with anything live
1Branch: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 2Logic 17Service 6

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

  1. 1Execute Workflow TriggerExecute Workflow triggerStarts it
  2. 2Every hourSchedule triggerStarts it
  3. 3Set message templateSetLogic
  4. 4Don't email on weekendsFilterLogic
  5. 5Fill message placeholdersCodeLogic
  6. 6SettingsSetLogic
  7. 7Compose messageSetLogic
  8. 8Email sequenceSetLogic
  9. 9Replying?IfLogic
  10. 10Get previous message threadsGmailService
  11. 11Get emailsGoogle SheetsService
  12. 12Reply to messageGmailService
  13. 13Send new messageGmailService
  14. 14Get thread detailsGmailService
  15. 15To email?FilterLogic
  16. 16Decode messagesCodeLogic
  17. 17Prepare first message paramsSetLogic
  18. 18Classify threadsCodeLogic
  19. 19Package placeholder valuesCodeLogic
  20. 20Next message due?FilterLogic
  21. 21Call message send sub-workflow1Execute WorkflowLogic
  22. 22Prepare reply paramsSetLogic
  23. 23Update last contacted timeGoogle SheetsService
  24. 24Decode placeholder valuesCodeLogic
  25. 25Call message send sub-workflowExecute WorkflowLogic

How it's built

Starts on
A clock
Steps
25, with 1 branch
Size
Large: read it before trusting it with anything live
Connects to
Gmail, Google Sheets
Model
None. This is plumbing, not judgement

Questions

What does it need to run?

An n8n account, plus your own Gmail and Google Sheets accounts. You connect your own accounts after importing it; none are included.

What starts it?

It starts on a clock.

Does it use AI?

No. Every step is fixed logic or a call to a service, so it does the same thing every time.

How long does it take to set up?

Take your time. At 25 steps it is large: read it before trusting it with anything live.

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 25 steps before you point it at anything that matters.