Delete messages instead of moving them to the Junk E-mail folder

1. On the Tools menu, click Options.
2. Click Junk E-mail.
3. Select the check box labelled 'Permanently delete suspected junk e-mail instead of moving it to the Junk E-mail folder'.

Please Note: When you permanently delete suspected junk e-mail messages, the messages are immediately deleted and not moved into the Deleted Items folder
Deleting messages and setting the level of junk e-mail protection to Safe Lists Only helps provide the maximum protection against junk e-mail messages.
If you are using a Microsoft Exchange Server e-mail account and working online, you must be using Microsoft Exchange Server 2003 or later. If you do not know what version of Exchange server your e-mail account is using, contact your Exchange administrator.