Import-Module MSOnline
$O365Cred = Get-Credential
$O365Session = New-PSSession –ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell -Credential $O365Cred -Authentication Basic -AllowRedirection
Import-PSSession $O365Session -AllowClobber
Connect-MsolService –Credential $O365Cred
 
Get-Mailbox | Where {($_.ForwardingSMTPAddress -ne $null) -or ($_.ForwardingAddress -ne $null)} | Select Name, ForwardingSMTPAddress, ForwardingAddress, DeliverToMailboxAndForward
 
get-pssession|remove-pssession