Enabling SSL for the Default Web Site
Perform this procedure on every Exchange front-end server in your environment that will be used for Outlook Web Access.
Configure or Update RSA SecurID Agent (Optional)
If you have chosen to deploy RSA SecurID as an additional security layer, you should set up your Exchange server as an Agent Host within the RSA ACE/Server’s database at this point.
There have been timing limitations between IIS 6.0 and the RSA/ACE Agent. Be sure to update your RSA/ACE Agent for better compatibility with IIS 6.0. For more information, see the RSA Security Web site.