AmeriMail is offering a 14 day free trial for the Postini Email Security Service for up to 10 users that you will designate. Your selected 10 users will have full anti-spam and anti-virus coverage during the trial period. Email for all other users in your domain will simply pass through as they do normally without being scanned. Once you see what the system is capable of we are confident that you will want to subscribe to the full service and activate coverage for all users.