n8n cold email automation step by step (personalized with AI, sent from Gmail)

Mass "Dear Sir/Madam" emails don't work anymore. What works is a short email that mentions something real about the prospect's business. Writing those by hand takes 10 minutes each — n8n does it in seconds.

Personalized Cold Email workflow in n8n (Sales ebook, chapter 2)

The workflow, step by step

1. Schedule trigger — every 15 minutes, pick the next fresh lead from Google Sheets.
2. Research — fetch the lead's website (and Instagram if available) and extract the key facts.
3. AI writer — write a 60–90 word email that references one specific thing, offers one clear benefit and ends with a low-pressure question.
4. Spam check — AI scans for spammy words, all-caps, too many links; rewrites if needed.
5. Send from Gmail — at a human pace, never in a burst.
6. Update the sheet — status = Sent, date, email text saved for reference.

The follow-up that books meetings

Most replies come from follow-ups, not the first email. A second workflow:

• checks every 30 minutes who is due for a follow-up,
• writes a short, friendly nudge (never "just bumping this"),
• stops immediately when the lead replies, bounces or unsubscribes.

A good AI prompt structure

• Context: who you are and what you sell, in two lines.
• Facts: the research notes about this one prospect.
• Rules: under 90 words, no fake compliments, one question at the end, plain text.
• Output: JSON with subject and body so n8n can use them directly.

Deliverability checklist

• Use a separate sending domain or mailbox, warmed up gradually.
• Start with 20–30 emails a day and grow slowly.
• Include an unsubscribe line and honour it automatically.
• Verify emails before sending to keep bounce rates low.

Get the full sales system

The Sales (Growth) ebook connects this with a Google Maps lead scraper, WhatsApp auto-reply, an AI sales calling agent and a Telegram CRM with daily digests — all with step-by-step explanations and ready JSON.