This update provides the Junk E-mail Filter in Microsoft Office Outlook 2003 with a more current definition of which e-mail messages should be considered junk e-mail. This update was released on October 18 2005.
Download: Update for Outlook 2003 Junk E-mail Filter (KB906173)
View: Description of the Update for Outlook 2003 Junk E-mail Filter (KB906173).