Disable welcome message for specific roles but keep for others, user_mail_notify

Question

In Drupal 7...

I am trying to find a solution to disable the sending of the user mail register by admin for certain roles. I have scoured the internet and have come up with using a combo of mailcontrol and Rules or custom code in my module.

I'm using Rules to send the message. I didn't want to completely disable the welcome email message for the other roles.

How can I create this functionality of sending the system mail to some users but not others? (either programmatically or via Rules)

I have a custom module already, so I used the following hook but nothing happened. I still get the welcome message.

function myMod_fields_user_mail_notify($op, $account, $language = NULL) {

 $notify = variable_get('user_mail_' . $op . '_notify', $default_notify);

if (in_array('Administrator', $user->roles)) {
  if ($op == 'register_admin_created') {
   //don't send system email we'll do this with another rule.
    variable_set('user_mail_register_admin_created_notify', false);
  }
  else if ($notify) {
  $params['account'] = $account;
  $language = $language ? $language : user_preferred_language($account);
  $mail = drupal_mail('user', $op, $account->mail, $language, $params);
}
return empty($mail) ? NULL : $mail['result'];
 }
}

Answer 1

I kind of stumbled on this after nobody answered my question. (I was desperate)

The solutions is to:

1. Edit your welcome email, under Account Settings.

2. Enable Mail Control and disable the welcome email. This content is saved in the database, so don't worry about losing anything.

3. Create a new Rule to react on a new event: After saving a new user account

4. Add in your condition: User has Role && User is being Notified.
5. Under Actions: Send Account E-mail.
6. Under E-mail Type: Choose Welcome E-mail.
7. Save! Clear Cache! Get More Coffee!