<?php

/**
 * Uses Zend_Mail to send emails.
 */
function drupal_mail_wrapper($mailkey, $to, $subject, $body, $from=NULL, $headers=NULL) {
  zend_initialize('Zend_Mail');
  if (variable_get('zend_mail_transport', NULL) == 'smtp') {
    static $transport;
    // we might as well keep the transport, if we send multiple emails
    if (!isset($transport)) {
	    zend_initialize('Zend_Mail_Transport_Smtp');
	    $host = variable_get('zend_mail_smtp_host', 'localhost');
	    $port = variable_get('zend_mail_smtp_port', 25);
	    $config = array('port' => $port);
	    if (variable_get('zend_mail_smtp_encryption', 'none') != 'none') {
	      $config['ssl'] = variable_get('zend_mail_smtp_encryption', 'none');
	    }
	    $transport = new Zend_Mail_Transport_Smtp($host, $config);
    }
  } else {
    // this makes sure that zend_mail will just use the default, and we don't see any E_ALL stuff
    $transport = NULL;
  }
  $mail = new Zend_Mail();
  foreach ($headers as $header => $value) {
    if ($header != 'Return-Path' && $header != 'From') {
      $mail->addHeader($header, $value);
    }
  }
  $mail->setBodyText($body);
  $mail->setFrom($from);
  $mail->addTo($to);
  $mail->setSubject($subject);
  try {
    $mail->send($transport);
  }
  catch (Zend_Mail_Transport_Exception $ex) {
    watchdog('zend_mail' ,'drupal_mail_wrapper - error (#'.$ex->getCode().') - '.$ex->getMessage(), WATCHDOG_ERROR);
    return FALSE;
  }
  return TRUE;
}