I see that the problem of having emails in both the sent and the draft folders at the same time has been going on for awhile, but I have just started to notice this happening to me in the past few weeks. Yes, I have tried the solutions that were given in previous posts here. Just to be clear, I compose and send an email, and then later I am looking at my drafts and the email shows as not sent and says in a message at the top that there was a problem. However, the email has been sent, is in my sent folder, and sometimes I have even received a reply. The email stays in drafts until I delete it. This is so confusing as I am never sure if my emails actually were sent or not, and it doesn't even happen every time. Please fix!