Я скачал SwiftMailer 4.1.6 для отправки электронной почты с помощью Gmail. Я написал следующий код для этой цели.

<?php

require_once 'swiftmailer/lib/swift_required.php';

$transport = Swift_SmtpTransport::newInstance('smtp.gmail.com', 465, "ssl")
        ->setUsername('[email protected]')
        ->setPassword('***********');

$mailer = Swift_Mailer::newInstance($transport);
$message = Swift_Message::newInstance('Wonderful Subject')
        ->setFrom(array('[email protected]' => 'Jomit Jose'))
        ->setTo(array('[email protected]' => 'Jomit Jose'))
        ->setBody('This is the text of the mail send by Swift using SMTP transport.');

$numSent = $mailer->send($message);
printf("Sent %d messages\n", $numSent);

и это привело к следующей ошибке:

Fatal error: Uncaught exception 'Swift_TransportException' with message 
'Connection could not be established with host smtp.gmail.com 
[Permission denied #13]' in 
/home/jomit/public_html/email_test/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php:266 

Stack trace: 

#0 /home/jomit/public_html/email_test/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php(66): 
Swift_Transport_StreamBuffer->_establishSocketConnection() 

#1 /home/jomit/public_html/email_test/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(117):   
Swift_Transport_StreamBuffer->initialize(Array) 

#2 /home/jomit/public_html/email_test/swiftmailer/lib/classes/Swift/Mailer.php(79): 
Swift_Transport_AbstractSmtpTransport->start() 

#3 /home/jomit/public_html/email_test/test.php(16): 
Swift_Mailer->send(Object(Swift_Message)) 

#4 {main} thrown in /home/jomit/public_html/email_test/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php on line 266

Что могло пойти не так?