Open Outlook and go to File > Manage Rules & Alerts.Click on New Rule.Select a template under Start from a blank rule or choose an existing template.Define the conditions for the rule (e.g., specific sender, subject line).Choose the action (e.g., move to a folder, mark as read).Specify exceptions, if any, and click Next.Name the rule and click Finish to apply it.Review your rules in the Rules & Alerts window to ensure they are prioritised correctly.