Update the quote and email format so that it’s a better fit for mobile devices. The emails come with different font sizes, the footing is really big and the logo is stretched out.
Are you referring to system alerts or system messages. ie. emails from OR to you; or, emails from you to the guest? Both should be displayed reasonably on mobile browsers; we've recently been working over that. Email alerts from OR in particular now use a mobile-friendly design.
If you have a specific example of a recent one that is bad, please send a screenshot in to the Helpdesk - perhaps we missed one. :-/