Google Message Security for Google Apps Administration Guide - Manual (Page 131)

Domains 131
Click Move Domain link next to move a domain from one organization to another.
Add a Domain Alias
During activation, your service is initially set up for users in one primary domain
and any associated domain aliases. If you have additional domain aliases that you
want to filter, you can add these domain aliases in your Google Apps dashboard.
These aliases are then automatically added to the Postini Services console.
To add a domain alias:
1. Go to your Google Apps control panel.
2. From the top menu bar, click Domain settings.
3. Click the Domain names link.
4. Click the Add a domain alias link.
5. Enter your domain alias in the available field, and click Continue and verify
domain ownership.
6. Choose a method for verifying domain ownership, and follow the instructions
within the Google Apps user interface.
7. Click Verify and continue to setup email delivery.
8. Change your email delivery (change your MX records). Follow the instructions
within the Google Apps user interface.
Note: You must manually change the MX records for your new domain alias to
direct mail flow through the Postini for Google Apps service. For instructions
on changing your MX records for your domain aliases, see
Change Your Email
Delivery in the activation guide for Postini for Google Apps.
Change MX Records for a Domain
For instructions on changing your MX records for one of your domains or domain
aliases, see
Change Your Email Delivery in the Postini for Google Apps Activation
Guide.