OutlookWeb Attachment Preview Errors Tuesday 23rd April 2019 11:50 PM

When users attempt to preview MS Office attachments in Outlook Web while outside of Marshall's network they will receive an error that muexchwac.marshall.edu could not be found. ITI Systems is working to identify the cause. Users on Marshall's networks will not experience this issue.

Impact: -----

Affected Applications: OWA

Issue resolved.

ITI Systems deployed and Office Online Server and made configuration changes to the on-prem Exchange environment. Our initial testing shows the issue to be resolved. We will monitor this for 24 hours.

The issue was identified as being a compatibility issue with our current Office Web Apps server 2013 installation and users who are still on Exchange 2013 mailboxes. Exchange 2016 does not support this older service and requires the latest Office Online Server. We are installing and configuring our Exchange environment to coexist with both servers.