In previous versions of Outlook Express, you couldn't create a filter for deleting messages when your e-mail address did not appear in the "To:" field. (Spams are often addressed to "undisclosed recipients.") Outlook Express 5 remedies that deficiency.
Select a message and go to Message-Create Rule From Message. In the first category, check Where the To line contains people. Under "Select the Actions for your rule," check Move it to the specified folder. You could set Outlook Express to delete the message from your ISP's server and not download it, but it's safer to set up a junk folder that you can review -in case an important e-mail from your boss comes addressed to you in a mailing list of multiple recipients. Under Rule Description, click contains people and enter your e-mail address. Click Add, then Options.
You'll get a pop-up box called Rule Condition Options. Under "Apply rule if," select Message does not contain the people below. Click OK twice. Back under Rule Description, click specified, select or create the folder where you want your non-personal mail dumped and click OK twice. Setting up such a filter does have one drawback: If you subscribe to a discussion group, all the messages from that group may end up in your junk folder.