New Vulnerability Impacting PDF Previews on Exchange

Exchange 2016Due to a recently discovered security vulnerability, changes are required, affecting the functionality of the web-based email client that services SMU faculty and staff.

Specifically, the vulnerability requires a patch for our on-premises Microsoft Exchange email servers, impacting Webmail users’ ability to view PDF previews in the web-based client. The PDF preview feature will still work as expected for Microsoft Outlook desktop and mobile clients. We will notify the campus as soon as a fix is available for this issue. For more information, please see Microsoft’s support document PDF preview function in OWA leads to download action unexpectedly.

If you have any questions, please feel free to contact the IT Help Desk at 214-768-HELP (4357) or email

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Ian Aberle

Ian Aberle is an Adobe Creative Educator and the Senior IT Communications Specialist & Trainer for the Office of Information Technology (OIT). For over 25 years, he has helped the SMU community use technology and implement digital and web media through multiple roles with the Digital Commons, SMU STAR Program, and now OIT. Ian enjoys photography and road trips with his family in his free time.