Comparing Industry Leading Anti-Spam Services

Overview

The following analysis summarizes the spam catch and false positive rates of the leading anti-spam vendors. Compiled by Opus One, an independent research firm, this report provides data to objectively compare the market's most popular anti-spam solutions. All of the anti-spam solutions tested are in Gartner's 2008 "Leaders" or "Challengers" Magic Quadrant. In total, eight vendors were evaluated over the course of fifteen months The only vendor mentioned by name is the evaluation leader: Cisco IronPort. The remaining vendor names have been obfuscated.