Retiring the Postini Spam Filter

UPDATE: August 20, 2012—Postini spam tests have been re-enabled. Get more details in this updated blog post.

We’re disappointed to announce that spam filter testing for Postini is no longer available via Litmus.

Since its purchase by Google in 2007, Postini has been slowly declining in popularity. In addition, Google recently stopped supporting Postini as a standalone product. Google used Postini to build Gmail’s spam filter and have decided not to port back those changes to the original Postini service.

We have made the tough decision to stop supporting Postini, but will continue to offer strong support for Gmail’s built-in spam filter. While we were aware that this would likely happen, we didn’t anticipate standalone support to be dropped so suddenly. We apologize for the short notice and any inconvenience or confusion this may have caused.