Completely coincidentally, Microsoft today published a blog post The many ways to block automatic email forwarding in Exchange Online and today I have a companion script to display all forwarding information for a selected set of mailboxes – working both on-premises and for Office 365.
Obviously, you don’t want to turn off forwarding until you know who and what will be affected!
You can find this script on the TechNet Gallery here: Display All Forwarding Information for Mailboxes in Exchange On-Premises and Office 365.
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