The "Set-Mailbox" cmdlet is commonly associated with Microsoft Exchange Server and Office 365 environments, where it is used to modify mailbox properties. However, this cmdlet is not directly applicable to a standard Windows environment without these services. For Windows administrators who need to manage user mailboxes, the closest equivalents involve using PowerShell to interact with Active Directory (AD) and Exchange Online or on-premises Exchange Server.

Understanding how to manage mailboxes is crucial for system administrators who oversee user accounts and email services. This article will guide you through setting up and managing mailboxes using PowerShell in a Windows environment that includes Exchange Server.

Examples:

1. Setting Up PowerShell for Exchange Online: To manage mailboxes in Exchange Online, you need to connect PowerShell to your Office 365 environment.

   # Install the Exchange Online PowerShell module
   Install-Module -Name ExchangeOnlineManagement -Scope CurrentUser
   
   # Import the module
   Import-Module ExchangeOnlineManagement
   
   # Connect to Exchange Online
   $UserCredential = Get-Credential
   Connect-ExchangeOnline -UserPrincipalName $UserCredential.UserName -ShowProgress $true

2. Modifying Mailbox Properties: Once connected, you can use the Set-Mailbox cmdlet to modify mailbox properties. For example, to change the mailbox quota:

   Set-Mailbox -Identity "user@example.com" -ProhibitSendQuota 5GB -ProhibitSendReceiveQuota 6GB -IssueWarningQuota 4.5GB

3. Creating a New Mailbox: If you need to create a new mailbox in an on-premises Exchange Server environment, you can use the New-Mailbox cmdlet:

   New-Mailbox -UserPrincipalName "newuser@example.com" -Alias "newuser" -Database "Mailbox Database 1" -Name "New User" -OrganizationalUnit "Users" -FirstName "New" -LastName "User" -Password (ConvertTo-SecureString -String "P@ssw0rd" -AsPlainText -Force)

4. Viewing Mailbox Properties: To view properties of a specific mailbox, use the Get-Mailbox cmdlet:

   Get-Mailbox -Identity "user@example.com" | Format-List

5. Removing a Mailbox: To remove a mailbox, use the Remove-Mailbox cmdlet:

   Remove-Mailbox -Identity "user@example.com"