Symfony SwiftMailer - expected response code 220, but received code ", with message" "

Question

I know this question has a bunch of answers like this on SO already, but none of the solutions seem to work for me.

I am trying to send an email from my Google Apps domain. Letters are sent most of the time, but sometimes this exception gets and the letter is not sent.

Uncaught PHP Exception Swift_TransportException: "Expected response code 220 but got code "", with message """ at C:\HostingSpaces\abc\domain.com\wwwroot\vendor\swiftmailer\swiftmailer\lib\classes\Swift\Transport\AbstractSmtpTransport.php line 383 {"exception":"[object] (Swift_TransportException(code: 0): Expected response code 220 but got code \"\", with message \"\" at C:\\HostingSpaces\\abc\\domain.com\\wwwroot\\vendor\\swiftmailer\\swiftmailer\\lib\\classes\\Swift\\Transport\\AbstractSmtpTransport.php:383)"} []

Yes, I use SSL, yes, I gave access to less secure applications, and yes, I use port 465. I turned on buffering so that the application wouldn’t crash because the exception didn’t get there.

My config.yml below

swiftmailer:
    transport:  smtp
    host:       smtp.gmail.com
    username:   [e-mail]
    password:   password
    port:       465
    encryption: ssl
    spool: { type: memory }

And my email class is below

public function send_new_order_email($entity) {
    try{
        $message = $this->getEmailObj("[e-mail]");
        $message->setBody(
                $this->renderView(
                    'APIBundle:Emails:ops_neworder.html.twig',
                    array('entity' => $entity)
                ),
                'text/html'
            )->setSubject('New Order : '.$entity->getId());

        $this->container->get('mailer')->send($message);
    }
    catch(Exception $e){}
}

private function getEmailObj($email){
    $message = \Swift_Message::newInstance()
            ->setFrom('[e-mail]')
            ->setTo($email);
    return $message;
}

Do you have any suggestions to make this work?

Answer 1

Symfony Swiftmailer Gmail, , . :

swiftmailer:
    transport: gmail
    username:  your_gmail_username
    password:  your_gmail_password

, .