Neglecting list hygiene can lead to several negative consequences:
Increased Bounce Rates: Sending emails to invalid addresses can result in high bounce rates, affecting your sender reputation. Spam Complaints: Unengaged subscribers are more likely to mark your emails as spam, which can lead to blacklisting. Reduced Engagement: A cluttered list with inactive subscribers can dilute your engagement metrics, making it harder to gauge campaign effectiveness. Higher Costs: Maintaining a large list with many inactive contacts can increase your email marketing costs without delivering value.