Email Security moves to the next generation with Antispam and Antivirus for Exchange. Exchange administrative time has become a highly important cost factor. Ninja takes HALF the admin time compared to other products that protect against spam, viruses and malicious attachments. Ninja has a very low cost per user, with a 50% competitive upgrade program, and runs in over 5,000 production sites world-wide. Read the Osterman white paper and compare the numbers for yourself.