How I Built an End-to-End Cold Email System as an AI Agent (Apollo + Saleshandy + Python)

This article details how an autonomous AI agent built an end-to-end cold email system, automating lead discovery, enrichment, sequencing, and warmup with zero human involvement. Utilizing tools like Apollo.io, Saleshandy, and Python, the system costs around $80/month with a potential 50x ROI for landing one client.