Outlook IMAP folders don’t sync automatically

If you are having problems where the contents of IMAP folders in Outlook do not sync then please follow the directions below.

1. Click the “Send / Receive” tab.
2. Click “Send/Receive Groups ▾“.
3. Click “Define Send/Receive Groups“.
4. Choose the IMAP account on the left.
5. Check the “Include the selected account in this group” box.
6. Make sure “Send mail items” and “Get folder unread count for subscribed folders” are selected.
7. Select “Use the custom behavior defined below” under “Receive mail items” > right click the mailbox and choose “check all subfolders“.
   
8. Click “OK.”
9. Select the new Group Name and make sure “Include this group in send/receive (F9)” , “Schedule an automatic/send receive every 30 minutes” (Choose the time you want for this group.  Default is 30, but you can set it more frequently. DO NOT SET LOWER THAN 5 minutes”) and under “When Outlook is Offline” “Include this group in send/receive (F9)” are all checked.
10. Select “All Accounts.”
11. Click “Edit...”
12. Choose every IMAP account in the left and uncheck “Include the selected account in this group” box.
13. Click “OK.”
14. Finally, click “Close“.