how to set outlook to permanently delete spam
Delete messages instead of moving them to the junk email folder. In Mail, on the Home tab, in the Delete group, click Junk, and then click Junk E-mail Options. On the Options tab, select the Permanently delete suspected junk e-mail instead of moving it to the Junk E-mail folder check box.n Mail, on the Home tab, in the Delete group, click Junk, and then click Junk E-mail Options. On the Options tab, select the level of protection that you want.