Switch Your MX Records to Postini
Once you complete the Setup Wizard, you will receive an activation email from Postini. This email provides the information you need to switch your Mail exchange (MX) Records to Postini.MX records are entries within the Domain Name System (DNS) that identify servers that handle email for your domain. You already switched your MX records to Google when you signed up for the Google Apps Premier Edition service. However, to complete the activation process for Policy Management and Message Recovery by Postini, and to ensure that your messages are archived and filtered by Postini, you need to change your domain’s MX records again.The steps in this process vary depending on the domain host that you use. The Google Apps Email Switch Guide provides detailed instructions for several commonly used domain hosts.
IMPORTANT: Your domain must already be registered with Google Apps Premier Edition before you switch your MX records to Postini; otherwise, the email in your domain will be bounced when you change your MX records.
Before switching your MX records to Postini, carefully review your activation email (see the sample activation email below). This email provides your Postini login information, a list of MX records for switching mail flow to Postini, and the outbound SMTP records that you need to set up outbound mail flow.
