Follow these steps to maintain a clean email list:
Remove Hard Bounces: Hard bounces occur when an email is permanently undeliverable. These addresses should be immediately removed from your list. Identify and Remove Inactive Subscribers: Subscribers who haven't engaged with your emails over a period of time (e.g., six months) should be removed or put through a re-engagement campaign. Eliminate Duplicate Emails: Duplicate entries can skew your metrics and lead to unnecessary costs. Ensure each email address is unique. Validate Email Addresses: Use email validation tools to check the validity of your email addresses regularly. Monitor Engagement: Track opens, clicks, and other engagement metrics. Remove or segment subscribers who show no interest in your content.