To translate emails templates you of course have to need log in to shop as a shop administrator.
Open admin menu to Localization > preferences section.
from first dropdown select: Email templates translations.
from second dropdown select: your current theme.
from third dropdown select: language for which you want to define for translations.
You can see this type of form to translate text :
Then you can find the email translation options.
Thanks for reading this article.
Buy our premium PrestaShop themes please see our portfolio : themeforest.net