engelsystem/includes/helper/email_helper.php

<?php

function engelsystem_email_to_user($recipient_user, $title, $message, $not_if_its_me = false) {
  global $user;
  
  if ($not_if_its_me && $user['UID'] == $recipient_user['UID']) {
    return true;
  }
  
  gettext_locale($recipient_user['Sprache']);
  
  $message = sprintf(_("Hi %s,"), $recipient_user['Nick']) . "\n\n" . _("here is a message for you from the engelsystem:") . "\n\n" . $message . "\n\n" . _("This email is autogenerated and has not to be signed. You got this email because you are registered in the engelsystem.");
  
  gettext_locale();
  return engelsystem_email($recipient_user['email'], $title, $message);
}

function engelsystem_email($address, $title, $message) {
  $result = mail($address, $title, $message, "Content-Type: text/plain; charset=UTF-8\r\nFrom: Engelsystem <noreply@engelsystem.de>");
  if ($result === false) {
    engelsystem_error('Unable to send email.');
  }
}

?>