Outlook 14.3.0 filtering Junk email

Exchange 2007 email account.

Outlook is filtering some emails into the Junk email folder.

Junk email protection is set to low. Have also tried to turning it off.

Telling Outlook to mark as not junk does not apply to future emails from the same sender.

I read that Outlook 2011 does not have junk email filtering for Exchange accounts (WTF!), however this was not happening prior to updating to 14.3.0.