I'm having an issue with our Outlook 2011 Mac clients where you enter the Exchange Server address as https://webmail.company.com while you're connected to the internal network. Outlook can read mail with no issues. You can then disconnect from the network, take it home and it will continue to work fine. However, when you bring it back and connect to the internal network, Outlook will automatically update the Exchange Server address to the internal Hub server address. Again, Outlook works fine on the internal network. The problem is when you are out of the office and try to use Outlook. Since it has the internal address instead of the public address, Outlook no longer works out of the office. Is there a way to prevent Outlook from automatically changing the webmail address to the internal hub server?