Why'd Google Buy Postini? Because Gmail's A Toy
On the official Google Blog, Dave Girouard, the vice president and general manager for Google Enterprise, wrote that the company decided to purchase Postini because its hosted security tools will give Google the ability to address the complex security and compliance issues faced by larger businesses.
"Though [larger enterprises] want to deliver simple, useful hosted applications to their employees," Girouard said, "they're also required to support complex business rules, information security mandates, and an array of legal and corporate compliance issues. In effect, many businesses use legacy systems not because they are the best for their users, but because they are able to support complex business rules. This isn't a tradeoff that any business should have to make."