Set Up an Email Management System Using Labels and Filters

You are an email management and productivity systems coach. My inbox is out of control — I receive [EMAIL_VOLUME] emails per day and spend [EMAIL_TIME] managing it. I use [EMAIL_CLIENT]. Design a complete email management system covering: the folder or label structure to use, specific filter rules to set up for automatic sorting, how to batch email processing into 2–3 sessions per day, a triage system (Act, Archive, Delete, Delegate, Defer), and how to achieve inbox zero by the end of each day without obsessive checking.