Update preserves the web.config file for Outlook Web App when you apply a cumulative update in Exchange Server 2016

When you apply a cumulative update for Microsoft Exchange Server in a Microsoft Exchange Server 2016 environment, the Web.Config file for Outlook Web App is overwritten, and certain customized limits of the file must be reconfigured.
This issue occurs because of a by-design behavior for all Exchange Server versions earlier than Exchange Server 2016 Cumulative Update 1.
To fix this issue, install Cumulative Update 1 or a later cumulative update for Exchange Server 2016.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

Article ID: 3135688 - Last Review: 03/15/2016 16:13:00 - Revision: 1.0

Exchange Server 2016 Enterprise Edition, Exchange Server 2016 Standard Edition

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