We have an IMAP account with years of back history in it, and I can see and search all the old messages from the mail host's webmail page. However, when we configure an IMAP connection in Microsoft Outlook, we only see the messages created since the day we set it up. Of course we need to see and search the old emails, not just the new ones...
This seems like it should be obvious, like there should be a configuration for it ("Show X days of history"), but I can't find anything in the GUI nor with lots of Googling. Help?