try {
    $serverAddress = Get-Content -Path ".\DefaultServer.txt"
    $credential = Import-Clixml -Path ".\AdminCredential.xml"
    $session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri http://$serverAddress/PowerShell/ -Authentication Kerberos -Credential $credential
    Import-PSSession $session
    Enable-Mailbox -Identity $args[0]
    Write-Host "User mailbox enabled successfully!" -ForegroundColor Green
    Remove-PSSession $session
} catch {
    Write-Host "Failed to enable user mailbox. Error:" -ForegroundColor Red
    Write-Host $_
}