Do one of the following:
Manually delete items from the view
Do one of the following:
Note Changing the view for items can make selecting specific items easier. For instance, if you want to select all messages that have the same subject, in the folder containing the messages, on the View menu, point to Arrange By, and then click Subject. Select the messages you want from the view.
On the toolbar, click Delete . The items are moved to the Deleted Items folder.
To permanently delete the items, empty the Deleted Items folder. Do one of the following:
Automatically empty the Deleted Items folder
On the Tools menu, click Options, and then click the Other tab.
Select the Empty the Deleted Items folder upon exiting check box.
Note To turn off automatic emptying of the Deleted Items folder, clear the Empty the Deleted Items folder upon exiting check box.
Manually empty the Deleted Items folder
On the Go menu, click Folder List.
Backup or delete items using AutoArchive
Do any of the following:
Specify default AutoArchive settings for all Microsoft Outlook folders
AutoArchive is turned on by default. However, you can change its default settings.
On the Tools menu, click Options, and then click the Other tab.
Click AutoArchive.
With Run AutoArchive every x days selected, specify how often to run AutoArchive.
Select the options that you want.
Note If you change the archive file listed under Move old items to, it's changed for all folders that use the default AutoArchive settings.
Specify AutoArchive settings for individual folders
On the Go menu, click Folder List.
In the Navigation Pane, right-click the folder you want to specify settings for, and then click Properties on the shortcut menu.
Click the AutoArchive tab.
Specify whether you want to archive this folder and if so, whether to use the default AutoArchive settings or your own settings.
To archive to a file other than the default one, specify a different file name in the Move old items to box. The next time AutoArchive runs on this folder, Outlook will automatically create the new archive file for items in this folder.
On the File menu, click Archive.
Specify whether to archive all folders using their AutoArchive settings (that is, either the default settings, or per-folder settings you specified for individual folders) or whether to archive an individual folder using the options you specify in this dialog box.
Note To archive to a file other than the default one, specify a different file name in the Archive file box. Outlook automatically creates another archive file for items in the selected folder.
Automatically delete or move junk e-mail messages