A categorizer forward loop was detected. The 'targetAddress' attribute is set on a mailbox-enabled user. This is a common ...

{4}: A categorizer forward loop was detected. The 'targetAddress' attribute is set on a mailbox-enabled user. This is a common hosting configuration problem when someone creates a contact in organizational unit (OU) 1 and then creates a user in OU 2 that has the same mail address by using the user provisioning tool. Troubleshooting: Check and remove the 'targetAddress' attribute from mailbox-enabled users.