I wanted to disable the junk e-mail filtering on the Exchange server, and let individual users change the filter settings at their own Outlook 2010.
I have tried to create a safe sender's list from Outlook, which is simply ignored.
I also created Transport Rule from Hub Transport which will force safe sender mail to be accepted, and this is also ignored.
The mails blocked are auto-generated and sent from itself. For Example, ABCD@mycompany.com sends out mail from a database to ABCD@mycompany.com when someone signs up for a class on the web. Those are the ones causing problems.