Postini users will have to convert to Google Apps by 2013 or lose access to their email archiving and security features, Google announced over the summer. Google Message Security and Message Discovery will be replaced by Google Apps for Business and Apps Vault, while Google Message Filtering and Postini Small Business Edition will no longer be offered. "Over the past four years, Google has integrated the Postini business, including products, processes, and personnel into our Enterprise division. This integration is moving into the next phase where new products and features developed on Google Apps platform replace the original Postini products. Postini customers can receive similar email security and archiving features, but on a more robust platform," said Google.