- check rules
Rules and Alerts
under e-mail rules, if you will see the "send to junk" rule. Simply tick it and then remove it from the red x button called Delete.
- Try the command line switch
Start - Run - type
C:\Program Files\Microsoft Office\Office11\Outlook.exe /cleanserverrules
this should run outlook
next run it normally and see if that has solved the problem (you may have to send some e-mail to yourself to test it)