Short description of Spam Crusher 1.1A: Spam Crusher is designed to filter unwanted email, while allowing the email you want to receive. Spam Crusher can be configured to filter multiple email accounts. Spam Crusher is really easy to set up. In just a few minutes you can be up and running. It lets you add the email addresses of those people who are your " friends." The people you want to receive email from. At the same time, it filters out junk email using powerful filters.