Как использовать PowerShell Remoting для Exchange 2013, чтобы получить размер почтового ящика?

Question

Я запускаю приведенный ниже скрипт из Remoting (Ноутбук с PowerShell ISE на локальный Exchange), чтобы получить размер почтового ящика и разрешения, затем экспортировать в файл .CSV:

$DataPath = "C:\mbxresults.csv"
$UserMailboxes = Get-Mailbox -ResultSize Unlimited | Where-Object { $_.ObjectClass -notmatch '(SystemAttendantMailbox|ExOleDbSystemMailbox)' -and $_.RecipientTypeDetails -ne "DiscoveryMailbox" }

 ForEach ($mailboxes in $UserMailboxes) {
    $UPN = $mailboxes.UserPrincipalName
    $MailboxPermission = Get-MailboxPermission -Identity $UPN | Where-Object {("$($_.AccessRights)".Split(', ') -contains 'FullAccess') -and (-not $_.IsInherited) -and ($_.User.toString() -ne "NT AUTHORITY\SELF") -and ($_.User.toString() -notlike '*Discovery Management*')}
    $MailboxStats = Get-MailboxStatistics -Identity $UPN
    $User = Get-User -Identity $UPN
    [pscustomobject]([ordered]@{
        Name = $mailboxes.Name
        PrimarySmtpAddress = $_.PrimarySmtpAddress
        UPN = $UPN
        Alias = $mailboxes.alias
        OU = $mailboxes.organizationalUnit
        Server = $MailboxStats.ServerName
        Database = $MailboxStats.DatabaseName
        TotaItemSize = [Math]::Round([Int64]($MailboxStats).TotalItemSize.Value.ToString().Split("(")[1].Split()[0].Replace(",","") / 1MB, 2)
        Notes = $User.Notes
        RecipientTypeDetails = $_.RecipientTypeDetails.ToString()
        FullAccess = ($MailboxPermission | ForEach-Object {$_.User.ToString()}) -join ', '
    })
} | Sort-Object -Property TotaItemSize | Export-Csv -NoTypeInformation -Path $DataPath

Но как-тоэто не правильно?

См. ниже ошибку:

At C:\Temp\Get-PermissionANDSize.ps1:22 char:3
+ } | Sort-Object -Property TotaItemSize | Export-Csv -NoTypeInformatio ...
+   ~
An empty pipe element is not allowed.
    + CategoryInfo          : ParserError: (:) [], ParseException
    + FullyQualifiedErrorId : EmptyPipeElement

You cannot call a method on a null-valued expression.
At line:9 char:2
+     [pscustomobject]([ordered]@{
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

You cannot call a method on a null-valued expression.
At line:9 char:2
+     [pscustomobject]([ordered]@{
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

You cannot call a method on a null-valued expression.
At line:9 char:2
+     [pscustomobject]([ordered]@{
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

Как я могу исправить проблему?