Cost-based Anti-spam Systems
Since spam occurs primarily because it is so cheap to send, a proposed set of solutions require that senders pay some cost in order to send spam, making it prohibitively expensive for spammers.
Read more about Cost-based Anti-spam Systems: Stamps, Proof-of-work Systems, Bonds or Sender-at-risk, Suing Spammers
Famous quotes containing the word systems:
“Before anything else, we need a new age of Enlightenment. Our present political systems must relinquish their claims on truth, justice and freedom and have to replace them with the search for truth, justice, freedom and reason.”
—Friedrich Dürrenmatt (1921–1990)