参考:https://social.technet.microsoft.com/Forums/tr-TR/451171bf-574e-4436-992c-dc814c041da1/exchange-2016-getmessagetracklog?forum=exchangeserverzhchs

EventID含义:

https://learn.microsoft.com/zh-cn/exchange/mail-flow/transport-logs/message-tracking?view=exchserver-2019#event-types-in-the-message-tracking-log