Welcome to the Cold Email Machine. Your toolkit is on its way to your inbox — plus access to everything below.
Check your email. Your download link, setup guide, and Discord invite are on their way right now.
Look for an email from hello@coldstack.tech. It contains your download link, the n8n workflow JSON, and your setup video access.
Inside the email: your Discord invite link. Join the community of cold email operators. Share wins, ask setup questions, get troubleshooting help from real humans.
Watch the setup video. Import the workflow JSON. Add your API keys (email, OpenAI, Telegram). Hit activate. The machine starts working.
Most users get their first reply within 48–72 hours of activating their first campaign. Replies hit your Telegram. You close the deal.
Everything You Own
The full visual workflow: lead source → enrichment → AI personalization → send → follow-up → Telegram reply. Import in one click.
Screen-record walkthrough of the entire setup. Watch me configure every node, every API key, and every setting. No guesswork.
The exact 21-day warmup protocol that protects your domain and builds sender reputation. Same process agencies charge $500/month for.
20+ prompt templates the AI uses to write unique, personal opening lines for every prospect. Edit to match your voice and offer.
5 pre-written 3-email follow-up sequences. Plug in your offer and launch. Each sequence designed to re-engage cold prospects without being pushy.
Pre-built spreadsheet that logs every lead, email, open, reply, and bounce. Real-time dashboard of what's working and what to kill.
Direct access to other Cold Email Machine users. Share wins, debug setups, swap templates. This is your operator community — not a ghost forum.
Set it up. Run a campaign. If you don't see value in 30 days, email us and get a full refund. No forms, no questions. Just email.
What you need before you start. Get these ready first.
An n8n instance running (self-hosted or cloud)
Self-host on your own server (free) or use n8n.io/cloud (free tier available)
A sending email account (Gmail, Outlook, or SMTP)
Use a dedicated sending address — not your personal one. Google Workspace starts at $6/month. Better: use a custom domain email.
OpenAI API key or Gemini API key
Used for AI personalization. OpenAI costs ~$0.01 per email at scale. platform.openai.com — $5 gets you 500+ personalized emails.
A Telegram bot token (free)
Create one in 2 minutes via @BotFather on Telegram. This sends replies directly to your phone.
A Google account for Sheets integration (free)
Used to log leads and track campaign performance. Any personal Google account works. No Google Workspace required.
Not technical? Don't have time? Our team will configure your entire Cold Email Machine on your n8n instance — email accounts, API keys, workflow, warmup, and your first campaign. Done in 48 hours.
Included in your $97 purchase
Add-on: $197 one-time
Questions? Email us anytime: hello@coldstack.tech
We're a small team. We respond within 24 hours. No bots, no canned responses.