Qualify great leads from n8n Form with MadKudu and Hunter and alert on Slack
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This workflow has 8 nodes and runs when someone submits an n8n form (“Contact us”). Along the way it connects Slack and Hunter.
How it runs
Trigger: When someone submits an n8n form (“Contact us”).
- Verify email with Hunter (Hunter): email verifier
- Check if the email is valid (If): checks a condition and branches into true / false
- Score lead with MadKudu (HTTP Request): calls an HTTP API
- If: checks a condition and branches into true / false
- Slack: uses Slack
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (6)
- Slack
n8n-nodes-base.slack - n8n Form Trigger
n8n-nodes-base.formTrigger - If
n8n-nodes-base.if - No Operation, do nothing
n8n-nodes-base.noOp - HTTP Request
n8n-nodes-base.httpRequest - Hunter
n8n-nodes-base.hunter
From the author
Use case If you have a form where potential leads reach out, then you probably want to analyze those leads and send a notification if certain requirements are met, e.g. employee number is high enough. MadKudu is built exactly to solve this problem. We use it…