Our Web Server has the Microsoft 365 apps version of Outlook installed to facilitate email previews and PST exports.
Recently, there were issues with exporting to PST, exports would work sometimes but not consistently. What appears to have fixed this issue is disabling auto-updates and then downgrading to 20228.20190 by running:
cd %ProgramFiles%\Common Files\Microsoft Shared\ClickToRun\
OfficeC2RClient.exe /update user updatetoversion=16.0.20228.20190
Now I’m running into an issue previewing emails in Compliance Search, which is also sporadic. The Error says 'Preview not available'. I did a test and when just using the default wildcard search, I selected an email, and saw the preview. I then performed a search, selected the SAME email, and it said 'Preview Not Available.
Is this also Outlook related? What version of Outlook are people running?
