Google will soon be turning off its popular spam filtering and e-mail archiving product, Postini. It will shift Postini users to Google Apps, which also includes Postini's features.
At last count, Google had over 26 million Postini users, many of them at enterprises. They use this cloud service to filter e-mail for viruses and spam. Postini currently works with Microsoft Exchange and Lotus Notes, so Gmail isn't required. [businessinsider.com...]