Get-messagetrackinglog -ResultSize Unlimited -Start "07/01/2017 12:00:00 AM" -End "09/01/2017 11:59:00 PM" | where{$_.sender -like “*
@contoso.com” } | select timestamp, messageid, messagesubject, sender, {$_.recipients}, @{label="Size in MB"; Expression={$_.Totalbytes/1mb}}, recipientcount | export-csv c:\1234.csv