Postini

Google Message Security and Compliance products, powered by Postini, are available to businesses and organisations that want to make their existing email infrastructures more secure, compliant, and productive. The message security products protect you from spam and messaging threats. The compliance products enable you to enforce message policy and content management, archive messages with discovery services, as well as encrypt your sensitive email. As a service, there is nothing to install or maintain, so you can start small and implement additional services as your requirements grow.

Google Message Security
Anti-spam l Anti-virus l Content Management Policies

Google Message Discovery
Email Archiving l Email Retention l Searchable Repository