Since moving to the new format and noticeably since using my new Samsung Note 2, when I look at my Hotmail account on my laptop, my sent messages are often duplicated over and over again.  This recently became apparent when my box was full, which I couldn't understand.  On investigation I found all these duplicated sent messages, pages and pages of them.  I have only had the phone for a few weeks and if the configuration between that and my account is causing the problem, my box will soon fill up again. How can I stop this?