Mail App keeps showing old mail as new
everytime i open Mail...it will show all my existing mail as new...so constantly everyday i open mail i get more than 1000 notifications of new mail but they're just my existing old emails...This is only happening with my Hotmail accounts...i've tried updating the hotmail servers...rebuilding the accounts but nohing helped... PLEASE HELP!
MacBook Pro with Retina display, OS X Mountain Lion (10.8.2)