Yo I'm working on an app atm, that has a 'Contact Support' button. When tapped, this button opens the users email compose with few things auto filled out. However, if the user doesn't have an email account setup on their device, tapping the button currently does nothing. Is there a way to detect this ? We have a URL to open instead as a fall back, so I'd like to know when the email fails to open and display the web site instead, handling it gracefully for the user.