How to Configure Virtual Directories to Use SSL
After you obtain an SSL certificate to use either with your Exchange front-end server on the default Web site or on the site where you host the \RPC, \OMA, \Microsoft-Server-ActiveSync, \Exchange, \Exchweb, and \Public virtual directories, you can configure the default Web site to require Secure Sockets Layer (SSL).
The \Exchange, \Exchweb, \Public, \OMA, and \Microsoft-Server-ActiveSync virtual directories are installed by default on any Exchange 2003 installation. The \RPC virtual directory for RPC over HTTP communication is installed manually when you configure Exchange to support RPC over HTTP. For more information about how to set up Exchange to use RPC over HTTP, see Exchange Server 2003 RPC over HTTP Deployment Scenarios.
Before You Begin
Configuring virtual directories to use SSL is just one step in configuring SSL. For an overview of the procedures that you must follow to configure SSL, see "How to Use SSL to Secure the Communications Between the Client Messaging Applications and the Exchange Front-End Server" in the Exchange Server 2003 Client Access Guide.
Before you perform this procedure, you must read "Using Secure Sockets Layer" in "Securing Your Exchange Messaging Environment" in the Exchange Server 2003 Client Access Guide.
To configure virtual directories to use SSL
In Internet Information Services (IIS), select the Default Web site or the Web site where you are hosting your Exchange services, and then click Properties.
On the Directory Security tab, in Secure Communications, click Edit.
In Secure Communications, select Require Secure Channel (SSL).
After you complete this procedure, all virtual directories on the Exchange front-end server on the default Web site are configured to use SSL.