According to Ferris Research, spam can cost over $500 per user a year. Even with spam filters in place, they claim it still costs $140 per user a year. It also results in lost productivity and higher IT costs. InformationWeek is offering an interesting white paper detailing a groundbreaking new anti-spam technology used in the Abaca Email Protection Gateway. The new approach involves analyzing the relationship between sender and receiver and claims it can block 99 percent of incoming spam. Check it out for yourself here and leave a comment letting us know what you think.