How to Change Languages in Yahoo Mail
To change the language used for your Yahoo Mail account interface: The language change takes effect immediately. If it doesn’t, log out of your Yahoo Mail account and then log back in.
What Do the Yahoo Mail Language Settings Do?
When you open a Yahoo Mail account, the language used for the interface is determined by your location. For example, if you live in the United States, the default language is English. As a result, the buttons, menu options, and other Yahoo Mail interface elements are in English. English isn’t the only option available, though. Yahoo Mail supports more than 80 languages and variations of languages to select as alternatives. Changing your default language affects the following:
The names of folders and menus.Navigation options.The contents of some advertisements.Other Yahoo pages you visit while logged in to your account.