If you want to forward your Rackspace email to more than one email address here is how to do it. You can forward email to a maximum of 4 recipients and each recipient must be comma separated like:
em****@em***.com, em****@em***.com, em****@em***.com
See the screenshot below on how to do this. You can find this in the “settings” section of your Rackspace email account.