Sorry for the e-mails!
There is no way WordPress can prevent posts from being sent to subscribers. I need to translate my English posts into 4 other languages and subscribers will receive e-mails.
I have another website filled with over 750 posts and 150 pages in 4 different languages, but Google is very slow to index my new website (it will take 15 years). I am very sorry for the translations being e-mailed to you, but this website is expanding.