也许你可以看看:<br>
Front-End and Back-End Server Topology Guide for Exchange Server 2003 and Exchange 2000 Server<br>
<a target=_blank href=http://www.microsoft.com/technet/prodtechnol/exchange/guides/E2k3FrontBack/3beec46b-188a-4067-9f1e-c9fe17e1cb9f.mspx>http://www.microsoft.com/technet/prodtechnol/exchange/guides/E2k3FrontBack/3beec46b-188a-4067-9f1e-c9fe17e1cb9f.mspx</a>