1. Frequency of Emails: Sending too many emails can overwhelm subscribers, leading to email fatigue and eventual disinterest. 2. Irrelevant Content: If the content of your emails does not resonate with the interests or needs of your audience, they are likely to ignore or unsubscribe. 3. Poor Segmentation: Not segmenting your email list effectively can result in generic emails that do not address the specific needs of different subscriber groups. 4. Lack of Personalization: Personalized emails perform better. Lack of personalization can make your emails appear generic and less engaging. 5. Overuse of Discounts: Constantly offering discounts can make your subscribers wait for the next discount rather than purchasing at full price, thereby devaluing your products.