McAfee Secure Messaging Gateway with the anti-spam module...

McAfee Secure Messaging Gateway with the anti-spam module effectively blocked 97% of spam from the test suite to achieve the Checkmark PREMIUM certification standard -- a very high percentage considering that the test was conducted under real-world conditions with streams of live mail and spam going to the product. Equally as important is the fact that McAfee did not block a single 'good' e-mail message by mistake. There were no false-positives.