You cannot preview Microsoft Office documents that are attached in shared folders by using Microsoft Outlook Web App in a Microsoft Exchange Server 2013 environment.


This issue occurs because shared mailboxes use the SecurityIdentifier value to identify the logged-on user’s address. However, Exchange returns the mailbox address instead of the logged-on user’s address to the value when you view the documents by using Outlook Web App.


To resolve this issue, install the following cumulative update:

2892464 Description of Cumulative Update 3 for Exchange Server 2013


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Thank you for your feedback!