Unity+

If I get a strange email, I delete it. The language is immaterial in this decision.

If you get a strange email and want to open it, I suggest running a Linux OS under Virtualbox or as an OS itself and opening the email.

I don't know if there's a possibility of a security breach if you're using gmail. I tend to trust google with all of my information, except proprietary stuff. I'd open it and translate it, or at least translate the subject.