Recently we were running into an issue where a client couldn’t enable archiving in Exchange 2010. When we attempted to enable for said user we got the following error.
“Mailbox “user” can’t be archive-enabled because it has a managed
folder mailbox policy assigned. Archives are supported only with a
retention policy, the messaging records management (MRM)
feature introduced in Exchange 2010.”
In order to remove the managed folder mailbox policy from “user” you’ll need to open PowerShell and enter the following command.
Set-Mailbox user -ManagedFolderMailboxPolicy $null
Once completed you can then enable archiving and assign retention policies.
Brandon Stuart, PEI