Automation library · Integrations

Validate signup email addresses with DNS and Data Tables

Started by another system calling it, and works across n8n data table. 16 steps: a working afternoon to understand properly.

Medium

16 stepsMedium: a working afternoon
0Branches: places the flow splits
0Loops or waits
1Service it connects to

The flow

Starts it 2Logic 6Service 8

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

  1. 1When A Form CallsWebhookStarts it
  2. 2SettingsSetLogic
  3. 3Read The AddressCodeLogic
  4. 4Look Up The MX RecordsHttp RequestService
  5. 5Look Up The A RecordHttp RequestService
  6. 6Look Up DMARCHttp RequestService
  7. 7Look Up SPFHttp RequestService
  8. 8Ask Who Registered The DomainHttp RequestService
  9. 9Fetch The Disposable ListHttp RequestService
  10. 10Everything BackMergeLogic
  11. 11Read The DNS AnswersCodeLogic
  12. 12Did They Mean Something Else?CodeLogic
  13. 13Read What You Have SeenData TableService
  14. 14Decide Accept Review Or RejectCodeLogic
  15. 15Answer The CallerRespond To WebhookStarts it
  16. 16Log Every CheckData TableService

How it's built

Starts on
Another system calling it
Steps
16
Size
Medium: a working afternoon
Connects to
n8n data table
Model
None. This is plumbing, not judgement

Questions

What does it need to run?

An n8n account. You connect your own accounts after importing it; none are included.

What starts it?

It starts on another system calling it.

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?

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.