Google Apps administrators can use a new feature in the administrator control panel to manage routing and basic filtering of email to on-premise systems as well as email to Google Apps users. These changes are a part of the integration of Postini and Google Apps.

Editions included: 
Google Apps, Google Apps for Business, Government and Education

Languages Supported:
All languages

For more information:
http://support.google.com/a/bin/answer.py?hl=en&answer=2685650
http://googleenterprise.blogspot.com/2012/08/continuing-transition-from-postini-to.html

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