Measuring the success of email campaigns targeting programmers requires a comprehensive approach. To start, track open rates and click-throughs to gauge engagement with your content. Analyze how often subscribers are forwarding emails or clicking on links shared in social media posts to measure virality. Additionally, measure conversions from each campaign by tracking signups, purchases, and other desired actions taken after receiving an email. Finally, use A/B testing to optimize subject lines and content for maximum effectiveness. By taking these steps you can accurately assess the success of your campaigns and ensure they reach their full potential.