Are you a Postini user? Postini is an email security platform that was gobbled up by Google a few years ago. Google Apps email users have enjoyed the spam and virus protection ever since, as have many clients who leveraged the Postini tools to cleanse their incoming email before it arrived on their own servers. The first group is in luck - they'll continue to use Postini. The second group, however, will have to look elsewhere for this type of filtering. Naturally, Google would like to have all of them migrate their business email to Google Apps (not a bad choice) but this just isn't feasible for many.