Tailing this log while reproducing the issue will result in a lot of output. Then you reproduce the issue and check the logs - the big question is where are the logs? Unfortunately, Outlook does not tell you this either, but you can find it in: ~/Library/Containers//Data/Library/Logs.

Then you need to close Outlook and open it again - wish it would state that. To do this, you go to Tools > Sync Errors > Gear Icon > Turn on logging for troubleshooting. Next up, I enabled troubleshooting logging. After completing this, I reinstalled Office, but the problem persisted. The following Library group containers: ~/Library/Group Containers/UB*įinally, you need to restart the computer.The following Library containers: ~/Library/Containers/com.microsoft.*.All Office applications in the Applications folder.Unfortunately, this process is not as user friendly as I hoped ( see here for more details) and requires you to manually delete the following:

I, of course, ensured I was running the latest version of Office and then did what Microsoft typically recommends - manually uninstall and manually reinstall Office for Mac 2016. This time I could easily check the logs so I did, but unfortunately, they did not report any issues. What was going on? Read on to learn more!

If I selected a message that had reappeared, it would magically disappear shortly thereafter.

Any time I deleted an email it would shortly reappear in the same folder.

All Calendar invites/updates/removals arrived as empty messages.

After fixing the issue, I noticed that Outlook was behaving oddly including: In my last post, I covered an error message I received randomly on mac os.

Outlook mac sync errors