No new messages in Inbox using Outlook 2013, IMAP, but messages appear in Sent

I think I might have found the solution. I cannot explain why, but it seems to work at my end at least. I started looking at folders, and seeing that Outlook had created its own Sent, Draft, Trash folders. But in my search to clear this up, I came across this website: http://www.msoutlook.info/question/736 So I tried to set the 'Root folder path', which made Outlook create new Sent, Draft and Trash folders again, but also, it started downloading the Inbox! I just typed 'Inbox' as the path. The nested folders disappeared (as folders other than the Inbox had been nested before. Now they appear just under the Inbox, just like my Exchange account above it...

Maybe this works for you as well...?

I see this several times a week with various clients on Outlook 2013.

(MOST COMMON)
1. Disable or uninstall 3rd party plug-ins (especially AntiSpam)

(LESS COMMON)
2. Change Send/Receive Settings to only load the Inbox folder

(EVEN LESS COMMON)
3. Make sure you are subscribed to the Inbox folder

(WORKAROUND THAT ALWAYS WORKS)
4. If all above fails, add the IMAP account again so you have two instances on the same profile. Set the newly added IMAP instance as the default (this also changes the default data store). Allow Outlook time to move data to the new instance, then remove the old account instance. This is a workaround but it works. It's better than creating a new profile if you need contacts, calendar and tasks. Alternatively, you could back up to .pst, create new profile, then import, but that's more work unless you only use Outlook for email.

Warning!!!: Outlook 2013 attaches all data to your account loaded on Outlook. If you delete the data file/pst before setting it up you won't be able to open it as a .pst like earlier versions of Outlook! You will lose all Contacts, Calendar, Tasks if you remove the account before setting it up again.