The problem was never your list. It's what your emails are saying.
Most brands send the same handful of emails. A new drop, a restock, a sale, 20% off this weekend. They work at first, so the sends keep coming.
But that's not why people buy. Most people don't open their wallet because a brand announced a sale or reminded them it exists. They buy when an email connects the product to a real problem, fear, or desire they already have. The actual reason they wanted the product in the first place.
Most brands never dig that deep. So the emails blur together, the list tunes out, and the only lever left is another discount, which just trains customers to wait for the next one. Emailing more, making less.
There's a better way, and it starts with knowing what your customers actually want to hear.