In email marketing, overfitting can manifest in several ways:
1. Personalization: Overfitting can lead to excessive personalization based on past behaviors without considering that subscribers’ preferences may evolve. 2. Segmentation: Creating segments that are too narrow might make the campaigns relevant only to a very small audience, reducing the overall reach. 3. Content Optimization: Over-optimizing email content based on previous successful campaigns might ignore broader trends and emerging interests.