Exchange Server, Powershell

How to get the Email Addresses of the owners of an Exchange Distribution Group?

Following PS cmdlet can be used to extract the Email Addresses of the owners of an Exchange Distribution Group

$Admins=(Get-DistributionGroup -Identity “theoffice”  | Select-object -ExpandProperty ManagedBy)
$results = foreach ($Admin in $Admins)
{$mailbox=(Get-Mailbox -Identity $Admin).PrimarySmtpAddress
$mailbox>>C:\Report\Report.csv
 }