I'm running Outlook 2013 in Windows. I have an IMAP account. It's not a 365 or Exchange account so I can't use OWA to manage it.
I foolishly copied the Sent mail subfolder (root Inbox) outside the Inbox, in the same account folder. Outlook won't allow me to delete the folder (it's greyed out in the options list) and it doesn't appear on my webmail page.
How can I delete it?