Some journal reports could not be delivered because the destination is a mailbox in the datacenter. Using a datacenter mailbox ...

Some journal reports could not be delivered because the destination is a mailbox in the datacenter.  Using a datacenter mailbox as the target address of a journal rule is not supported.  One of your organization's journal rules is using %1 as the target address.  Please check your organization's journal rules and make sure datacenter mailboxes are not used as the target address.