Towards the end of a recent announcement regarding the Critical Path trials we have been running, we mentioned that we had been looking at a number of other anti-spam/email security solutions with a view to implementing further trials. One of these solutions is provided by a company called Postini.
http://community.plus.net/comms/2007/10/24/spam-critical-path-learning/

We've been using Postini's Email Security solution for a while now on our internal mail platform, and we've since reached the position where we'd like to look at offering this to our customers.
http://www.postini.com/postini_solutions/isp.php

The way we will be implementing this is to first trial the solution with a small subset of customers who can help us test the platform.

Customers interested in taking part can register their interest by visiting http://trials.plus.net and following the on-screen prompts.

Further details regarding this work are contained in a blog post that was recently published to our Community Site:-
http://community.plus.net/comms/2007/11/12/wanted-postini-anti-spam-trialists/

Feedback and questions regarding this work are welcomed over on our discussion forums:-
http://community.plus.net/forum/index.php/topic,57643.new.html#new

Kind Regards,

Bob Pullen
Customer Support