Hello,
I wonder if there really is no way how to reach the result described in the title question. Becausehttp://support.microsoft.com/kb/2458522 says:
This issue occurs because of a functionality change that is introduced in Exchange Server 2010 SP1. In Exchange Server 2010 SP1, domains that are configured as accepted domains are no longer allowed in the junk email lists of a mailbox.
So please tell us Microsoft how can we force Outlook to accept internal domain as a trusted senders and not apply Junk email filter on it?
There was already a long discussion about the steps here http://social.technet.microsoft.com/Forums/en-US/outlook/thread/15f857c6-0ed4-4004-9d90-cb5d16361752 so please don't offer anything described there.
Thank you,