Exchange 2007 DG & List of all forwarding address list

Fetch the DG members from Exchange 2007

Get-DistributionGroupMember –identity “group name” | ft name, primarysmtpaddress | Export-CSV c:members.csv

Find all users with Forwarding Address is set

Get-Mailbox | Where {$_.ForwardingAddress -ne $null} | Select Name, ForwardingAddress, DeliverToMailboxAndForward c:/myfile.txt