Sending the same email to the entire list is not a strategy, it's a mistake. I read https://flowium.com/blog/personalized-email-marketing/ and realized I was wasting the data I already had. The guide explains how to tailor emails based on past customer behavior, preferences, and even how often they open your emails. As soon as I started doing this, my open rates went from decent to amazing. You have the data, you just need to use it properly. Start with this.