- You have two Active Directory sites in a Microsoft Exchange Server 2013 environment that has Cumulative Update 3 installed.
- Each site has a different External URL configured.
- Form-based authentication is configured for Outlook Web App virtual directories in both Active Directory sites.
- You have set cross-site silent redirection for Outlook Web App.
- A user accesses another site’s Outlook Web App URL.
Article ID: 2930352 - Last Review: Feb 25, 2014 - Revision: 1