I realize there are some similar threads on here, but none that I know of with this exact problem. My AOL mail was hacked sometime in the very recent past and is sending all kinds of crap to everybody I have ever conversed with over email. I can find the spoof emails that were sent in my AOL mail's sent folder, but not in my mail app's sent folder. However, when I get a returned mail notice, I get the notifications both in my mail app and aol mail. I have already changed my AOL password to something stronger and have also changed the security question. I did this at about 4 pm CST this afternoon and now over 5 hours later I am still getting "returned mail" from the mail delivery subsystem. I've gotten about 50 today so far. I have called apple care twice and AOL 3x and neither one has offered any solutions that have helped.