There are several indicators that your list segmentation might be ineffective:
Low Engagement Rates: If open rates and click-through rates are consistently low, it may indicate that the segmentation is not resonating with your audience. High Unsubscribe Rates: A high number of unsubscribes can be a sign that recipients find the content irrelevant. Inconsistent Results: If the performance of your email campaigns varies widely, it might indicate poor segmentation practices.