How to delete all content-emails from a mailbox and make it blank in exchange server 2016

Some time you may have a test mailbox and it may have some unwanted emails and you may need to delete all the emails permanently.

 You can use a simple command as below in Exchange PowerShell

Search-Mailbox -Identity "nawaz" -DeleteContent

Please note that the emails will be deleted permanently and you would not able to recover even from the recoverable items.