Yea its sucks mein v try kiti c. Pehla classic version select ho janda c hun kam aukha karta. Ess krke iphone cha mail account add kar lao ohhi vadiya skeem aa
Or. Try open yahoo yahoo mail on iphone in safari it will open mobile yahoo mail then click on option then mail option then to classsic version. I just did dat nd it wrks well.
1. login to your yahoo acccount than click on setting button (Top right "Gear Button")
2. select setting than click viewing email on the left hand side
3. select Basic than save (https://i.imgur.com/gRfrv9E.jpg)
4. logout clear your browser cache and cookies (Optional)
5. Login again