I'm having a problem similar to this but the provided answer didn't resolve it.
Symptoms: Using a non-gmail email service, I've configured IMAP across multiple devices using the same settings and this one instance of Outlook is the only one not working correctly. I see every email that I send in my Sent folder, and I see new spam in my Spam folder, but nothing new is appearing in my Inbox. The following error appears in Sync issues multiple times each time I launch Outlook:
20:44:54 Synchronizer Version 15.0.4551.1004 20:44:54 Synchronizing Mailbox 'firstname.lastname@example.org' 20:44:54 Synchronizing Hierarchy 20:44:57 Error in folder 'spam' 20:44:57 [800CCCD2-0-0-733] 20:44:57 Terminated in error 20:44:57 [800CCCD2-0-0-733]
...with 'spam', 'sent', and 'trash' being listed as the error folders. Those are the folders that seem to be working. Folder size isn't changing for the Inbox, so I don't think they're being downloaded.
- renaming the .ost, forcing Outlook to recreate the ost
- changing the "mail to keep offline" option from and to "all"
- starting Outlook in safe mode
- deleting and recreating my mail profile
- repairing Office
- uninstalling Office (with this tool) and reinstalling it
- booting in clean boot
- disabling the firewall
- resetting the view in Outlook
No options available through my email provider's cpanel web interface seem related to this.
I'll keep an eye on this thread, and am happy to provide more details or perform whatever steps are recommended.