Exchange Server 内部版本号和发行日期
https://docs.microsoft.com/zh-cn/Exchange/new-features/build-numbers-and-release-dates?view=exchserver-2019
Exchange Server 系统要求
https://docs.microsoft.com/zh-cn/Exchange/plan-and-deploy/system-requirements?view=exchserver-2019
Exchange Server 必备组件
https://docs.microsoft.com/zh-cn/Exchange/plan-and-deploy/prerequisites?view=exchserver-2019
