Plan an inbox routine for my email client

Task: Plan a daily inbox routine that keeps my email under control without checking it all day. Context: I receive about [number] emails a day, of which about [number] need a reply. My email client is [client name]. My biggest sources are [newsletters, customers, colleagues or notifications]. Right now I have [number] unread emails and I check mail [how often]. Rules: - Give a fixed number of check times per day with a time limit for each, and a decision rule for every email, such as reply, schedule, file or delete. - Propose at most five folders or labels, and at most three automatic rules for my biggest sources. - Do not claim what my email client can do. List the features the plan relies on, and tell me to confirm each one in my client before I set it up. - Include one safe way to clear the existing backlog without deleting anything I might need. Result: A routine in three parts, the daily schedule, the folders and rules, and the backlog plan, in at most 200 words.