Identify Inactive Subscribers: Use your email service provider’s analytics to find subscribers who haven’t engaged with your emails in a while. Send Re-engagement Campaigns: Before removing inactive subscribers, send a re-engagement email to see if they’re still interested in staying on your list. Remove Invalid Emails: Use email verification tools to check for and remove invalid email addresses. Segment Your List: Segmenting your list based on engagement levels can help you target your campaigns more effectively. Automate the Process: Many email service providers offer automation tools for list cleaning. Utilize these to regularly clean your list without manual intervention.