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One liners: Get All Exchange Users Who Are Configured for Forwarding

Exchange 2013 logo 128x128Due to some legal requirements, I had a needed to list all users who were configured in Exchange to forward elsewhere. This was to ensure that mail wasn’t automatically leaving the environment. A simple, single line in the shell is all that’s needed to give me what I need.

Open Exchange Management Shell, and enter this:

Get-Mailbox -Resultsize Unlimited | ? {$_.ForwardingAddress}

We can clean this up and make it a little more presentable using something like:

Get-Mailbox -Resultsize Unlimited | ? {$_.ForwardingAddress} | select Name, @{Expression={$_.ForwardingAddress};Label="Forwarded to"}, @{Expression={$_.DeliverToMailboxAndForward};Label="Mailbox & Forward"}

And the results are a small table that shows the user name, which object mail is being forwarded to, and whether the mailbox is configured to both store and forward:

forwardedusers

This allowed me to take a look at those user accounts, and disable the forwarding, forcing the users to use their Exchange mailbox.

For a long list, or if you just want the info in a file, we can export the results to a .csv using Export-Csv. To do this, use:

Get-Mailbox -Resultsize Unlimited | ? {$_.ForwardingAddress -ne $null} | select Name, @{Expression={$_.ForwardingAddress};Label="Forwarded to"}, @{Expression={$_.DeliverToMailboxAndForward};Label="Mailbox & Forward"} | Export-Csv c:\forwardedusers.csv -NoTypeInformation
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