Why you force user to new yahoo mail? It is very uncomfortable and irritating. Why you did not ask users if they wanted to switch to your new version? Why you did not give opportunity to users what version they wanted stay with? Why you removed option to switch back to older version? Please, read how many user not happy with your new yahoo mail. Please, give option to switch to previous yahoo mail.
Why you force user to new yahoo mail? It is very uncomfortable and irritating. Why you did not ask users if they wanted to switch to your new version? Why you did not give opportunity to users what version they wanted stay with? Why you removed option to switch back to older version? Please, read how many user not happy with your new yahoo mail. Please, give option to switch to previous yahoo mail.