As intuitive as Outlook rules are, some junk mail will always make its way past the filter. While you can simply delete each message, there is a way to identify messages as junk and keep them out of your inbox for good.

To mark a message as junk, right click the message in the preview pane and locate the Junk option. From there, you can select a variety of options – including Block a Sender, ensuring those emails do not continue to clutter your inbox.