1) On the Exchange server, launch IIS Manager.
2) Click on the ECP Node under Default Web Site:
3) Double click on the Dualshield IIS Agent icon
4) Enable 2FA and set the service type to Outlook Web Access
5) Click Change in the SSO Server settings
Server Address: FQDN or IP address of your DuualShield Server
Management Port: 8075 (default)
Enable the "SSL" option if your DualShield platform is operating on the SSL mode.
Enable the Enable Proxy if you wish to enable the reverse proxy feature in the IIS server.
Logon Port: 8074 (default)
Click Ok
6) In Advanced Logon Settings, enable Single Sign-On
7) Make sure Application URL is set to $RelayState.url under the Single Sign-On tab