Casper

  Casper is at the forefront of providing next-generation messaging security products that make email communication more productive and secure in the work place or at home. High volumes of unwanted email are crippling enterprise productivity today. Casper uses a unique and cost effective, multi-pronged approach to solve this problem for individual users. Unlike usual mail clients Casper receives only message headers. This small part of a message is generally enough to determine whether the message is worth downloading or it is spam. This approach allows you to save money on network traffic, your precious time and nerves.