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Top Players are the current leaders of the market, with products that have built up large customer bases.

"Secure Computing's IronMail® line of appliances are known for their high levels of performance and have kept the company a top competitor in the market for several years. In addition to the anti-virus and anti-spam engines integrated onto the products, IronMail appliances also benefit from the company's TrustedSource™ reputation network."

Click here to read the Secure Computing press release.

The Radicati Group is one of the most successful market research firms in the computer and telecommunications industry today. Radicati Market Quadrants are designed to illustrate how individual vendors fit within specific technology markets at any given point in time.