Yahoo mail is one of the quick and smart email services that users use all over the world to send and receive emails. However, sometimes some users face technical issues while using your Yahoo mail account and look for instant assistance to fix the problems. If you are one of them, then you can contact the Yahoo mail customer service team of Yahoo for fixing the problems.
https://sites.google.com/view/yahoo-mail-not-working-iphone/yahoo-email-support