Drupal mail function from the module

/**
* Send a Notification mail after CRON RAN
* to the admin user.
*/
function sendCRonNotificationMailtoAdmin($key) {

// set up the to and from
//this has to be from your server, or you could get blocked by spam blocker

$email_from = "from@gmail.com";

// Recipient mail ID in the $to variable.
$to = 'to@gmail.com';

//pass mail subject through this variable.
$subject = "Mail Subject Text";

//pass mail body content through this variable.
$mail_body = "Mail Body Text";

//build an array called $params to pass whatever you want to the email
$params['subject'] = $subject ;
$params['body'] = $mail_body;

$sent = drupal_mail('Module-Name', 'Module-Name_mail', $to, language_default(), $params, $email_from, TRUE);

}

// Responsible to build the mail function
// based on the module

function Module-Name_mail($key, &$message, $params) {
$language = $message['language'];
switch($key) {
//switching on $key lets you create variations of the email based on the $key parameter
case 'Module-Name_mail': // $key should be 'VECO' in the mail function
$message['subject'] = $params['subject'];
$message['body'][] = $params['body'];

// Cc to the multiple recipient.
$message['headers']['Cc'] = 'cc@gmail.com';

// Bcc to the multiple recipient.
$message['headers']['Bcc'] = 'bcc@gmail.com';
break;
}
}

// once this been done
//then you call the below function
// where exactly this needs to execute

sendCRonNotificationMailtoAdmin($key);