A user found that he has 2 unexpected email in his draft folder today, the message is not belonged to him. Server is Exchange 2019, Outlook is also version 2019.
Inside the email content, both are the same single sentence: "hello darkness my old friend".
It seems that it is an unexpected spam message. May I know how to check why the message can exist inside user of "Draft" folder?
Any suggestion to trace or prevent such message? Or PC has been hacked by virus?