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Automation DigiDuo (internal) 2026

AI Lead Response System

Every enquiry through our contact form gets a personalised reply without anyone watching an inbox. We built it for ourselves and run it every day.

< 15 sec response time
Zero manual effort per lead
< €0.25 monthly running cost

The challenge

Enquiries arrive at unpredictable times, and how fast you reply affects whether they turn into a conversation at all. Watching an inbox is not a job worth giving anyone. We built this for our own contact form.

What we built

A response pipeline running on self-hosted n8n:

  1. Inbound lead data fires an n8n webhook
  2. Message content, name and context go to Google Gemini 2.5 Flash
  3. Gemini drafts a reply in the sender’s own language
  4. Gmail sends it via OAuth2 from info@digiduo.ai
  5. The full interaction is logged to Google Sheets

Stack: n8n (self-hosted) · Google Gemini 2.5 Flash · Gmail OAuth2 · Google Sheets · Web3Forms · Hetzner VPS

The result

This is one of the few systems we run with no person in the loop - the reply goes out on its own, at any hour of the day. It is also the cheapest thing we operate.

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