echo emcrypt($email);
// #EM#706e66736b7767476d6d637f637f207c79#EM#

echo emdecrypt('#EM#706e66736b7767476d6d637f637f207c79#EM#');
// test@example.com

$text = "this si my email: example@example.si";
echo hidemail($text);
// this si my email: #EM#706e66736b7767476d6d637f637f207c79#EM#

$text = "this si my email: #EM#706e66736b7767476d6d637f637f207c79#EM#";
echo hidemail($text);
// this si my email: example@example.si

loadhelper('mail');
 
$mail = new mail();
$mail->from = 'system@mail.com';
$mail->to = 'mail@mail.com';
$mail->subject = "system";
$mail->message = system_mail_template(17,array('aaa'=>'1','bbb'=>2));
$mail->send();