In Australia, for example, the ACA (Australian Communication Authority) is responsible for enforcing the spamAct, and has the power to investigate complaints about spamming.
One approach towards reducing electronic junk, including spam in e-mail and on the Web, is to assign a small cost to the act of sending mail, or posting information on a Web site.
减少电子垃圾（包括电子邮件和 Web 上的垃圾信息）的一种方式是给发送邮件或在 Web 站点发布信息的行为加上一些成本。