All our email is handled by an outside provider. We use Outlook configured for pop accounts to send/recieve mail. The outside provider uses our domain name, we'll call it ourcompany.com and our email addresses are all <xxx>@ourcompany.com. We share the domain name space on our local network where we have an Exchange 2003 server used only for a few critical users to allow calendar sharing and mail store but not for sending/receiving mail.
How should the Exchange server be configed in this scenario to avoid ndr's? As in MS article 319759? Should Outlook for these few users on Exchange still have a pop account configured?