Multilanguage for emails and feedback messages

Hello,
I think, EM is a great plugin and I would like to use it on my site.
I use polylang and I’m actually setting up your plugin. My impression is, there is a good compatibility between your plugin and polylang.
My major concern is about the email settings and the feedback messages. I’m not able to figure out how to set up the messages in more languages. I looked into the polylang string translations, but EM is not there. I installed also your WPML compatibility plugin (I use polylang in WPLM compatible mode) but this makes no change. Can you please suggest, how I can handle this.

The page I need help with: [log in to see the link]