Clearbit has developed a strategic approach to onboarding new users through automated and personalized emails, compensating for the limited availability of sales development representatives (SDRs). By leveraging data, the company identifies potential leads from a high volume of signups, especially from their free consumer products, and sends tailored onboarding emails that appear to originate from a sales rep, thereby encouraging engagement and conversion. The initial implementation involved three variations based on user segments, yielding a 59% open rate and a 6% conversion rate to paid customers. Encouraged by these results, Clearbit has designed a more sophisticated, hyper-personalized email sequence for Tier 1 leads, integrating Clearbit's data enrichment capabilities and using various criteria such as role, technology tags, and lead scores to customize messages. This new approach is currently being tested against manually crafted emails by SDRs, with the aim of freeing up SDRs for higher-priority tasks while maintaining effective engagement. The personalization includes dynamic elements such as the recipient's name, company, and specific technology integrations, with the goal of initiating a conversation with sales. Clearbit's strategy emphasizes gradual improvements and testing, encouraging other companies to start small with automated personalized emails and iteratively enhance them for better results.