I have just had to reinstall WIndows 10 and subsequently Office 2013 with Outlook as my email programme
I have managed to reconfigure all my email accounts and they are set as IMAP.
My previous setup, exactly the same as now, worked fine and the inboxes of my email accounts all synchronised in Outlook.
Now I cannot see any emails in my inboxes in Outlook but when I check on the account under Google Apps, where they are all grouped, the inbox emails are there.