Improves Deliverability: Removing duplicates helps in reducing the chances of your emails being marked as spam. Enhances Customer Experience: Ensures that your subscribers do not receive multiple copies of the same email, which can be annoying and lead to unsubscribes. Cost Efficiency: Most email service providers charge based on the number of emails sent, so sending fewer emails can save money. Accurate Analytics: Provides more reliable metrics for open rates, click-through rates, and other key performance indicators.