I sold this automation to 2 clients

I recently built a small automation that handles cold email outreach from start to finish.

The idea was simple: automate the repetitive work while keeping emails personalized and natural.

Here’s how the system works:

It pulls a list of contacts from a spreadsheet.
It checks which contacts have already been emailed and which ones still need a follow-up.
For each contact, an AI generates a short personalized email using available data (name, role, company, etc.).
The system sends the email automatically.
It waits a random amount of time before sending the next one to keep things natural.
If someone doesn't reply, the system automatically sends a follow-up a few days later.

So instead of manually sending hundreds of emails, the whole process runs automatically.

Some things I focused on while building it: