Postini Transition to Google Apps :- We are transitioning Postini services to the Google Apps platform beginning in 2013. This site provides the latest information to help Postini customers prepare for the upcoming transition.

Over the past year, we have built similar Postini email security and archiving features into these Google Apps services:

• Google Apps for Business / Government / Education
  A professional suite of hosted email, calendar, and collaboration services

• Google Apps Vault
  Archiving and discovery services for email

With this transition, you will receive comparable email security, protection, and archiving, but through the more robust Google Apps platform.
Google Apps email settings also work with on-premise mail servers such as Microsoft Exchange and Lotus Notes, so you don’t need to switch to Gmail when transitioning from Postini to Google Apps.*

For details about Google Apps settings and the timing of your transition, see Feature comparison and Timeline.