Turn form signups into qualified sales alerts. New contacts are checked for a real business email, scored for fit, and only hot leads trigger an email to your inbox. Great for sales teams that want faster response times and fewer low quality leads.

The flow starts with an n8n form that asks for a business email. The email goes to Hunter to verify deliverability. An if check passes valid emails to a scoring step. A request to MadKudu returns a person fit score. Another check compares the score to a threshold like 60. When the score is high, an email is sent through Gmail with contact and company details. Leads that fail checks are ignored to keep your team focused.

To set this up, connect Gmail, Hunter, and MadKudu credentials, update the email field mapping, and set your score threshold. Expect faster triage, fewer manual checks, and quicker follow up on the right leads. Use it on a contact page, demo request form, or event registration page.

• Built in form collects a single field for business email and starts the flow.
• Email verification with Hunter filters out invalid or risky addresses.
• Lead scoring via HTTP request to MadKudu using the captured email.
• Threshold gate checks if the fit score is greater than 60 before alerting.
• Gmail sends a concise hot lead email with contact and company details.
• Do nothing branches safely stop low quality or invalid leads.

• Reduce manual lead review from 1 hour to 5 minutes per day
• Improve email data quality by up to 90% with verification
• Automate 80% of lead screening using score and validity checks
• Handle 5 times more inbound leads without extra hiring
• Connect form capture, verification, scoring, and email in one flow

1. Import the template into n8n: Create a new workflow in n8n > Click the three dots menu > Select 'Import from File' > Choose the downloaded JSON file.
2. You'll need accounts with Gmail, Hunter and MadKudu. See the Tools Required section above for links to create accounts with these services.
3. Open the Form Trigger node and confirm the form title and the field label match your site copy. Keep the question for a business email to ensure proper verification.
4. Double click the Hunter node, then on the Credential to connect with dropdown, click Create new credential and follow the on screen instructions. In your Hunter account, create an API key on the API page and paste it into n8n.
5. Double click the HTTP Request node for scoring. On Credential to connect with, click Create new credential. If asked for an API key or header, get your MadKudu API key from the MadKudu dashboard API page and follow the on screen steps to add it.
6. In the HTTP Request URL, make sure the email query uses the same field from the form, for example {{ $json["What's your business email?"] }} so the right value is sent to MadKudu.
7. Open the Gmail node and set the To address to your shared sales inbox. Click Create new credential if needed and complete Gmail OAuth2 in n8n Cloud.
8. Open the if nodes and adjust the score threshold if needed. For stricter screening, raise it above 60. For more volume, lower it.
9. Click Test workflow in n8n, submit the form with a real business email, and check the execution. Verify that Hunter marks it valid and that a score is returned.
10. If the alert does not arrive, check Gmail send limits, confirm the To address, and review the execution data for missing properties in the email template.
11. Activate the workflow and use the production form URL on your site. Monitor first week results and fine tune the score threshold to match your ideal customer profile.