Manual redirection occurs in Outlook Web App if External URLs in each site are the same

Symptoms
Consider the following scenario:
  • You have multiple Active Directory sites in a Microsoft Exchange Server 2013 environment.
  • You configure Outlook Web App virtual directories on all Client Access servers in each site with the same Internal URL and External URL, such as mail.xxxxxxx.com.

    Notexxxxxxx is the name of the domain.
  • A Client Access server handles a proxy request for a cross-site user who uses a different URL to sign into Outlook Web App. For example, the user tries to sign into Outlook Web App through owa.xxxxxxx.com.
In this scenario, the Client Access server redirects the user to the External URL of the Client Access server on which the user is located, and the user sees the following message:
Use the following link to open your mailbox with best performance

The expected behavior is that the Client Access server should be a proxy for the user to the Mailbox server on which the user is located.
Cause
This issue occurs because of a logic defect in the Outlook Web App proxy and redirection.
Resolution
To resolve this issue, install the following service pack: 
2926248 Description of Exchange Server 2013 Service Pack 1

Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More information
For more information about the Exchange Server 2013 Client Access role, go to the following Microsoft website:For more information about how to configure Outlook Web App virtual directories, go to the following Microsoft website:
Eigenschaften

Artikelnummer: 2930348 – Letzte Überarbeitung: 02/25/2014 21:13:00 – Revision: 1.0

Microsoft Exchange Server 2013 Enterprise, Microsoft Exchange Server 2013 Standard

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