When performing a regular scan, you should focus on several key areas:
Invalid Email Addresses: Identify and remove email addresses that are no longer valid or have never existed. Duplicate Entries: Ensure that each subscriber is only listed once to avoid sending multiple emails. Inactive Subscribers: Identify subscribers who haven't engaged with your emails for an extended period and consider a re-engagement campaign or removal. Spam Traps: Detect and eliminate spam traps that could damage your sender reputation. Hard and Soft Bounces: Regularly remove hard bounces and monitor soft bounces to take appropriate actions.