If your junk email filtering doesn’t seem to be working, check the Junk Email Options (Home ribbon, under Junk button, in Outlook 2010 and up) or Tools, Options, Junk Email Options in Outlook 2003 or 2007 and verify that your own email address is not on the Safe Sender or Safe Recipient list (or in Contacts, if you are trusting address lists). These two lists override the Blocked Sender list and the junk mail filter.
If you will never ever send email to yourself, add your address to the blocked senders list.
Published February 13, 2008. Last updated on August 3, 2015.