Problem
My Emails aren’t showing up or stopped syncing/populating when someone sends me a message
Solution
Difficulty: ★☆☆☆☆
Follow these steps to re-sync your inbox.
Select the Folder/Inbox you would like to re-synchronize in the left-hand sidebar.
Click “Send/Receive” at the top Nav-bar
In the Navigation Pane, select either “Update Folder” (Will update only the currently opened folder) or “Send/Receive All Folders” (May take longer) at top-left.