The sections below describe the steps that you have to carry out in order to set up the MSX-A components for the Exchange server transport.
If the IIS (MSX-A components) is installed on the portal server, the Web site or virtual directory should be different than the one hosting the portal. This implies that the URL for accessing Portal and MSX-A components should be different. For more information, see SAPNote 491129.
If your IIS website is running on an application pool, then the application pools identity should be the Local System.