How to delete all emails in Exchange?

Question

Microsoft Exchange

Good afternoon! Please tell me how you can delete all letters on the server with one command and the letters of an individual user.
It is necessary to delete all letters and calendars on the user's mail server. Without the possibility of recovery. In fact, you need to clear the entire server from letters.

Answer 1

Once and forever:

Get-MailboxDatabase | Dismount-Database
Get-MailboxDatabase | Remove-MailboxDatabase -Confirm:$false

Then delete the corresponding files from the disk
Less radical methods: for example, one and two

Answer 2

Delete the box, create the box.

Answer 3

I found a command to delete all letters, but is it possible to use a cycle with received addresses and file a delete cycle
1. Variable to receive all mailboxes

$address = Get-MailBox | select -Expand EmailAddresses | % {$_.SmtpAddress}

2. Command to delete all letters in the mailbox

Search-Mailbox -Identity почтовый_адрес -SearchQuery "Kind:Email" -DeleteContent

How can I wrap this command in a loop now?