To make sure that all the various aliases you accept emails for are covered by your Anti-Virus and SPAM filter, log on to your Postini account management console by clicking here. Don’t worry if you forgot your password, as Postini will resend it to you if you just ask for that option from the login window. Once you are logged in, add any emails that you receive an email for in the “Alias” mailbox, one at a time. If somebody in the same domain already signed up for one of these aliases, it will give you an error message. That is OK because that alias is already filtered then. For each alias that you add, you will receive a confirmation email, with a clickable link that you can use to confirm the addition of that alias.