Google is extending its hosted e-mail archiving service to hold messages for up to a decade. Google Message Discovery is a hosted service that helps organizations manage email retention and security. For a flat fee of $45 per user per year, users can add hosted archiving with the ability to retain messages for up to 10 years, along with spam and virus filtering, all powered by Postini. Google will still offer Message Discovery at $25 for archiving e-mail for a year or less. Both packages include full email security service, with spam and virus filtering, along with policy management tools and a discovery search interface to locate relevant email in the event of litigation.