swiftmailer不发送电子邮件

Question

I want to send emails using symfony, but the swiftmailer does not send out any emails. I even dont get error reportings or anything else. Thats my code:

$mail = \Swift_Message::newInstance()
                ->setSubject('Subject')
                ->setTo('test@example.com') #this is replaced by real email of course
                ->setFrom('test@example.com')
                ->setBody('Testbody');

        $this->get('mailer')->send($mail);

Thats the config:

swiftmailer:
default_mailer: mailer
mailers:
    mailer:
        transport: "%mailer_transport%"
        host:      "%mailer_host%"
        username:  "%mailer_user%"
        password:  "%mailer_password%"
        #spool:     { type: memory }

I even tried to set the host to an address that does not exist, but I dont get any error from swiftmailer or symfony.

I tried to find the files for the lib, but there is no Swift_Message or newInstance anywhere in the symfony files, strange

Answer 1

use this code

    $message = \Swift_Message::newInstance()
            ->setSubject('Validation de votre commande')
            ->setFrom('test@example.com') 
            ->setTo('test@example.com')
            ->setBody('Testbody');
            ->setCharset('utf-8')
            ->setContentType('text/html')
            ->setBody('test');

    $this->get('mailer')->send($message);

in app/config/parametres.yml :

mailer_transport: gmail
mailer_host: smtp.gmail.com
mailer_user: your mail
mailer_password: your password mail

in app/config/config.yml :

# Swiftmailer Configuration
swiftmailer:
    transport: "%mailer_transport%"
    host:      "%mailer_host%"
    username:  "%mailer_user%"
    password:  "%mailer_password%"
    spool:     { type: memory }

Answer 2

I had seen someone with the same problem. For him the problem was with the spool queue. It is solved by either disabling spool explicitly:

spool:
      enabled:false

or flushing the queue in the code:

$this->get('mailer')->send($mail);
$spool = $this->get('mailer')->getTransport()->getSpool(); 
$spool->flushQueue($this->get('mailer')->getTransport());

Hope it works!