If you want to access your Yahoo mail on iPhone or Android phone. You will have to install the Yahoo mail app. Before you proceed to download and install the Mail app on your phone must check its compatibility. To get more information about it you can ring Yahoo customer care number 1-844-794-2515. With the help of a toll-free customer care number, you can directly interact with the technicians and ask whatever you want.
Visit here:
http://www.customer-service-tollfree.com/support-for-yahoo-email/