For most configurations, Progress Kemp recommends creating a single Virtual Service for all HTTPS-based Exchange 2010 clients and services. That is a Virtual Services used by Outlook Web App (OWA), Exchange Control Panel (ECP), Outlook Anywhere (OA), Offline Address Book (OAB), Exchange ActiveSync (EAS), Exchange Web Services (EWS) and the Autodiscover service.

Using a single Virtual Service keeps the load balancer configuration simple and lets you have a single FQDN and associated SSL certificate for all Exchange 2010 client access methods and services.

You may use the same FQDN and SSL certificate for IMAP4 and POP3 access, even though they are on different Virtual Services, since they do not use port 443 like the above-mentioned client access methods and services.

In the configuration services below, refer to the Web User Interface (WUI), Configuration Guide for detailed descriptions of each of the WUI fields.