To delete duplicate emails in Outlook, begin by using the "Clean Up" tool, which removes redundant messages in email threads. Navigate to the "Home" tab, select "Clean Up," and choose from options like "Clean Up Conversation" or "Clean Up Folder." For more control, sort emails by subject or sender, then manually delete duplicates. You can also use third-party tools for automated duplicate removal. Regularly cleaning up your inbox will help optimize Outlook’s performance and free up storage space, making email management more efficient.
