[ms office - o365] Find an email forward rule

[Danp]

When sending an 'all staff' email the sender gets and error because of an account has been deleted.

 

The account that has gone (mrsmith@) does not show in all staff because it's gone, but there must be another account that has a forwarder set, but I don't know which account! It has to be a mailbox and not a group.

 

I'm guessing there must be a way to reverse search via PowerShell but I don't know how or what search term to find a way. Any suggestions?

[djm968]

You can use Powershell to list mailboxes that have forwarding rules set.

 

$mailboxes=get-mailbox –resultSize unlimited

$rules = $mailboxes | foreach { get-inboxRule –mailbox $_.alias }

$rules | where { ( $_.forwardAsAttachmentTo –ne $NULL ) –or ( $_.forwardTo –ne $NULL ) –or ( $_.redirectTo –ne $NULL ) } | ft name,identity,ruleidentity