SELECT Timestamp,MessageID,Sender,Recipients,RecipientCount
FROM OpenExchangePSQuery(
    POWERSHELL, '
        Get-MessageTrackingLog -ResultSize unlimited -Start (Get-Date).AddDays(-30) -End (Get-Date) | where { $_.sender -notmatch 'SystemMailbox.*' -and $_.sender -notmatch 'MicrosoftExchange.*' } | select Timestamp,@{Name="messageid"; Expression={$_.messageid -replace "<", ""  -replace ">", ""} },sender,@{Name="recipients"; Expression={$_.recipients -join "," } },@{Name="recipientcount"; Expression={$_.recipients.Count} }
             
              ', POWERSHELL
)