I have a Samsung Galaxy S4, which I switched to from a Blackberry in mid July 2013. I continue to get emails that were dealt with when first received by either opening and reading, or opening and deleting, that show up again as new and unread. My service provider (Rogers in Canada) tells me that it is because I have too many emails on the server. I don't believe this as when I had a Blackberry this never happened. They (Rogers) says this is because Samsung is a different OS.
