I'm trying to set up Outlook 2013 on Surface 2 updated to RT 8.1. I have the retain email setting set to three months on the accounts, but messages are disappearing once marked read for both gmail and Comcast accounts set up with IMAP. For the gmail account, the "All Mail" folder does not show in the list of folders; I've gone to the Folders tab to update IMAP folders, sync shows the all mail is selected, but it doesn't show up anywhere. I do have a Spam folder, junk mail and various others - insult is I can see spam folder's 72 messages whether I have read them or not, and can't unsubscribe from spam! Same thing happens in Comcast account; once a message has been read it isn't visible again whether viewing ALL or UNREAD. I've been using Outlook 2007 with IMAP on travel computer and POP on desktop and that behaves as expected - keeping messages that have been downloaded as headers or full messages until deleted. Is there some hidden setting that can make RT version retain messages after first view, or force the GMail all mail folder into view? Thanks.