Set SSL Client Options

When you enable SSL client authentication, you can require clients to provide an encrypted user name and password using SSL. You can also map certificates to client accounts for SSL version 3.0, which requires a certificate to authenticate the client.

To set SSL client options:

1. Start System Manager
   On the Start menu, point to Programs, point to Microsoft Exchange, and then click System Manager.
2. Navigate to NNTP.

   Servers

   1. Server
   2. Protocols
   3. NNTP
3. In the console tree, right-click a virtual server, and then click Properties.
4. On the Access tab, click Authentication.
5. Enable SSL client authentication must be selected. To require all clients to authenticate over SSL, select Require SSL authentication.
6. To authenticate users from a client certificate, click Enable client certificate mapping to Windows user accounts. To relate the information contained in the certificate to a Windows user account, click Client Mappings. Use the IIS dialog box to map one-to-one or many-to-one certificates. For more information on client certificate mapping, see the IIS documentation.