I have configured SMTP on a Windows Server 2008 R2 box. I also have a legacy Exchange server 2003 box that runs SMTP. I set up some Ricoh Aficio scanners to send scanned images to email via the Windows 2008 SMTP server. Everything works fine until I turn off the Exchange services on the 2003 box. Viewing the logs on the 2008 SMTP box shows that it is relaying messages through the 2003 Exchange Server. There appears to be some linkage among Exchange 2003, Active Directory, and Server 2008 SMTP. How can I bypass the 2003 Exchange server?