
Conflicts: If Outlook has had a problem syncing with the mail server, you may have different copies of the same email.The Sync Issues folder holds the logs for the synchronizations, so any general problems or delays in syncing with the mail server are recorded here.


This is why you can send a mail from Outlook on your computer and still see the message in the Sent Items folder when you check Outlook in the O365 online portal.

This changes the view in the Navigation pane to show all of the mail folders in your mailbox, including the Sync Issues folder and its three sub-folders.
