Email yahoo indo
You're looking for the Indonesian version of Yahoo Mail!
Here's the link to Yahoo Mail Indonesia:
You can access your Yahoo Mail account in Indonesian by clicking on the link above. If you don't have a Yahoo Mail account yet, you can sign up for one by clicking on the "Daftar" button (which means "Sign up" in Indonesian).
Note that the login page may be in Indonesian, but the email interface itself may still be in English. If you prefer to use the Indonesian interface, you can try using the Yahoo Mail app for Android or iOS, which is available in Indonesian.