How I Built It: $6M/Year Email AI Platform (Bootstrapped)

How I Built It: $6M/Year Email AI Platform (Bootstrapped)

Author: Nathan Latka June 18, 2025 Duration: 16:24

Alan de Souza built Reachbox.ai (Zapmail), an AI-powered cold email outreach platform offering email warmups, campaign automation, and lead enrichment. He scaled from zero revenue to $6 million ARR in just 18 months, serving 4,500 paying customers at $110 average revenue per user while growing 25% month-over-month with only 7.5% churn rate.

His 27-person team generates $230,000 in revenue per employee, with 280 active affiliates driving 35% of all customers through a 20% lifetime commission program that pays out over $50,000 monthly.

In this episode, Alan reveals how he added $5 million ARR in just 6 months using systematic customer feedback from 1,500+ conversations, why he still does 10 customer calls every day, and the exact affiliate strategy that turned his customers into a revenue-generating army earning lifetime commissions.


Ever wonder what the actual numbers look like behind a successful software company, or what crucial decision made the difference between stalling and scaling? SaaS Interviews with CEOs, Startups, Founders cuts straight to that chase. Host Nathan Latka sits down each day for a focused fifteen-minute conversation with the people building the software businesses shaping our world. These aren't abstract discussions; you'll hear founders detail their precise revenue figures, customer acquisition costs, team structures, and the sometimes messy realities of growth. The guests on this podcast represent the full spectrum of the journey, from those just launching an MVP to leaders managing companies with thousands of customers, from bootstrapped operators to those navigating venture funding. By tuning in, you get a daily dose of unvarnished data and tactical stories, stripping away the hype to understand how real SaaS businesses are built, run, and monetized. It’s a resource for entrepreneurs, operators, and anyone curious about the mechanics of modern software entrepreneurship, offering a clear window into the strategies that work and the pitfalls to avoid. Latka’s direct approach ensures every interview delivers concrete takeaways, making this podcast a unique and valuable listen for the business-minded.
Author: Language: English Episodes: 100

SaaS Interviews with CEOs, Startups, Founders
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