What would cause only Exchange server 2016 OWA to have this issue and nothing else? Clients work perfectly. There is an exclamation point next to it and it is unavailable. Additionally in OWA, when I try to view a public folder calendar that I have already favorited, Using OWA on any browser results in an error of "No public folders are available" when you try to use "add public folder to favorites" function. Using the Oulook 2016 client on the desktop, everything works perfectly for the newly migrated box.
In the process of testing, we have migrated a mailbox to 2016. With the add-in distribution configuration as the basis, your users can then use d.3one in Outlook in the web browser.We have an on prem Exchange 2013 CU19 and a new on prem Exchange 2016 CU8 server. You can find the manifest file under: \groupware\bin\wwwroot\outlookaddin\manifest\OutlookAddin.xml Go to Organization > Add-Ins and enter the supplied manifest file.Go to Microsoft Exchange Admin Center to distribute the add-in.Save your changes and restart d.ecs http gateway.In the header row X-Frame-Options, add the value ALLOW-FROM with.If you are using Microsoft Exchange On-Premises, enter frame-ancestorys 'self' as the value. , if you are using Microsoft Office 365. As the value for the header row, enter frame-ancestorys 'self'.As the name of the header row, enter Content-Security-Policy.Click Add header to add a new header row.In the Additional Headers area, remove the header rows Content-Security-Policy and X-Frame-Options.Open the d.ecs http gateway configuration interface and choose Configuration.
You can then distribute the add-in to your users with Microsoft Exchange Admin Center. If you also want to use the app for Microsoft Outlook in the web browser (OWA), for example, you must set up a connection for the add-in in d.ecs http gateway.
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