Responsiveness in mobile view

Hi!
Thanks for this great plugin.
The best available and I did tried a lots of them.

Only problem Im having is when accessing wp admin panel on my mobile device and try to read email that pass trought your plugin. I can’t see all the message. It open a content box and I can only view the middle of the message.
Could you please make this box responsive.
I see all the hmtl coding in this box but not on the email thas was sent when I look in my emaip box.

Thank you