Remove annoying email sending

I would like a simple checkbox for removing the annoying - "send email everytime someone submits a form". Right now you can get "one million" emails if you have lot of users.

Keeping the email association is a good idea for the use crons and stuff. Right now I am commenting out the following field so that the mail wont be sent.

/* if ($survey->email) {
$subject = t('%survey submission', array('%survey' => $survey->title));
foreach ($responses as $key => $value) {
$body.= $key . " : ";
$body.= $value . "\n\n";
}
$body.= "-----\n";
$body.= t("Submitted by %name on %date\n", array('%name' => $user->name . ' ('.url('user/'.$user->uid, NULL, NULL, TRUE) .')', '%date' => format_date(time())));

$from = variable_get('site_mail', ini_get('sendmail_from'));
$headers = "From: $from\nReply-to: $from\nX-Mailer: Drupal\nReturn-path: $from\nErrors-to: $from";
user_mail($survey->email, $subject, $body, $headers);
} */

Keep up the good work.