So, I have ip4 and mbp. I have the same email accounts on both devices. (mail app on mbp) My Yahoo Mail account is giving me an issue: When I read emails on ip4 in yahoo's account, it marks them as read on the phone. (naturally) BUT - it does NOT mark them as read in mail app on mbp. This is extremely frustrating because I get hundreds of emails a day and when I leave 1 or 2 unread for something important, it is impossible to find in the mess of unread emails. Does anyone know how to solve this? Has anyone come across this or seen any solutions? Ive been looking everywhere and I cant figure it out. i will never get to inbox0 and keep productive on that front if this doesnt get solved. help!