How to score leads and draft outreach emails with human approval in n8n
The problem
Scoring each new lead and writing a first email by hand is slow, but fully automatic outreach risks sending bad emails to real prospects.
Tools needed
- n8n
- LLM
- Gmail
- Google Sheets
Step-by-step recipe
- Receive the lead from a form or webhook.
- Validate the fields and check the sheet for duplicates.
- Ask the AI to score the lead HOT, WARM or COLD and draft a personalised email.
- Write the lead, score, draft and an approval status to Google Sheets.
- When a person marks the row approved, send the draft with Gmail and update the status.
Copyable prompt
You qualify inbound leads for [COMPANY], which sells [OFFER] to [IDEAL CUSTOMER].
Score the lead HOT, WARM or COLD using these criteria: [CRITERIA].
Return JSON: {"score": "...", "score_reason": "one sentence", "next_step": "...", "email_subject": "...", "email_body": "..."}
The email must be under 120 words, mention one specific detail from the lead, and end with one clear question. Do not invent facts about the lead.
Lead: {{lead}}Original template written by AgentRecipes, not copied from the source. Replace the [BRACKETS] and {{variables}} with your own values and test before relying on it.
What the builder reported
Shared as a V1 showcase with no results or numbers. A commenter suggested adding a score-reason field so approvers see source, reason, next step and draft in one row.
These are the source author's own claims. AgentRecipes has not tested or verified them.
Watch out for
- Keep approval inside Google Sheets at first and only build a dashboard once you know which fields reviewers actually use.
- Store a short reason next to every score so reviewers can trust or correct it.
Source
Original write-up: n8n Community forum ↗
Found via Agent Use Cases: “Qualify leads and draft emails pending human approval”. This recipe summarises the source in our own words; read the original for the full details. Link last checked 2026-10-15.
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