Can I A/B test subject lines or offers in recovery emails?

As an e-commerce store owner, I'm constantly trying to optimize every touchpoint with potential customers. Recovery emails have become a critical part of my conversion strategy, but I'm frustrated by the lack of clarity around how to truly improve them. I've been manually sending abandoned cart emails, but I have no systematic way to understand which messaging or offers actually motivate customers to complete their purchase. My current approach feels like throwing spaghetti at the wall—I create an email, send it out, and hope for the best. What I really want is a data-driven method to test different subject lines and offers, so I can incrementally improve my recovery email performance. I know my current conversion rates are leaving money on the table, and I'm looking for a solution that can help me systematically experiment and improve my email recovery strategy without requiring complex technical setup.