code: public static void startMailClient(@NonNull final Context context,
                                         @NonNull final String[] emailAddresses) {
          startMailClient(context, emailAddresses, null, null);
      }
docs: Starts the mail client in order to send an e-mail to specific e-mail addresses. If an error
  occurs while starting the mail client, an {@link ActivityNotFoundException} will be thrown.
  
  @param context
  The context, the mail client should be started from, as an instance of the class
  {@link Context}. The context may not be null
  @param emailAddresses
  An array, which contains the e-mail addresses, the e-mail should be sent to, as a
  {@link String} array. The array may neither be null, nor empty