I wouldn't advice to use @Kocer0 service
I won't give a review about his product. But on how your infos are handled. I just received a mailing about a offer he is running at the moment. But what was my surprise when i saw that every email he send it wasn't hidde !!
There was more than 999 email leaked that way, might be more. I think protonmail stop at 999.
if such mistake are made I don't want to know what else can be done.
Very unprofessionnal.