Outlook has a “No automatic filtering” setting but the blocked senders list is applied to incoming email. Some users complain that the filter continues to work after setting it to no automatic filtering and with the blocked list empty. Other users prefer to use a different spam filter.
There is a registry key that will disable the Junk email filter in Outlook 2007 and 2010. This key will completely disable the junk filter, including the blocked list, and disable the Junk email options button. It will not affect third party spam filters.
Go to the following key to disable the filter – if the key does not exist, add it.
In Outlook 2007, open the registry editor and browse to
HKEY_CURRENT_USER\Software\Policies\Microsoft\office\12.0\outlook
Add a DWORD for DisableAntiSpam
Value: 1 (Hex)
Value of 1 disables the junk filter, 0 enables it
In Outlook 2010, open the registry editor and browse to
HKEY_CURRENT_USER\Software\Policies\Microsoft\office\14.0\outlook
Do It For Me
If you don’t want to edit the registry yourself, we have ready-to-use registry files. Download (right-click on the link and choose Save as) then double click to run, answering Ok or Yes as needed. To re-enable the Junk filter, edit the reg file in Notepad, replacing the 1 with 0. To remove the key, Open the registry editor, browse to the value then delete it.
DisableAntiSpam reg for Outlook 2010
DisableAntiSpam reg for Outlook 2007
Restart Outlook for it take effect. The Junk email folder will remain (but should not be created if you make a new default pst file) – you can delete the junk folder using OutlookSpy or MFCMAPI.
Articles that may interest you:
Last reviewed on Sep 28, 2011

I did everything mentioned above and my mail still goes to the SPAM Folder.
The folder is named Spam? That is not an Outlook folder – you have an add-in (usually install by your antivirus suite) that created the folder and is moving the mail to that folder. Disable the addin in Trust center (File, Options in Outlook 2010, or Tools, Trust Center in Outlook 2007)