The High Availability topology is deployed on a different Microsoft Exchange site. Although cross-site SSO silent redirection is supported when you access your personal mailbox, you are prompted to authenticate again if you use OWA to access another mailbox.
- Sign in to your personal mailbox through OWA.
- Click the arrow on the upper-right corner of OWA to view the Open Other Mailbox option.
- Type the mailbox address that you want to open, and then click Open. An OWA sign-in page is displayed.
- Enter your credentials. You are redirected to the mailbox.
Article ID: 2901667 - Last Review: 16 May 2014 - Revision: 1