A clean email list is crucial for several reasons: - Improved Deliverability: A clean list reduces the chances of emails bouncing, which helps your emails land in the inbox rather than the spam folder. - Higher Engagement Rates: Engaged subscribers are more likely to open, click, and convert, leading to higher open rates and click-through rates. - Cost Efficiency: Many email marketing platforms charge based on the number of subscribers. Removing inactive or invalid addresses saves you money. - Protects Sender Reputation: Sending emails to invalid addresses or unengaged subscribers can harm your sender reputation, which affects deliverability.