Parameters

• swiftmailer.use_spool: A boolean to specify whether or not to use the memory spool, defaults to true.

• swiftmailer.options: An array of options for the default SMTP-based configuration.

  The following options can be set:

  • host: SMTP hostname, defaults to 'localhost'.
  • port: SMTP port, defaults to 25.
  • username: SMTP username, defaults to an empty string.
  • password: SMTP password, defaults to an empty string.
  • encryption: SMTP encryption, defaults to null. Valid values are 'tls', 'ssl', or null (indicating no encryption).
  • auth_mode: SMTP authentication mode, defaults to null. Valid values are 'plain', 'login', 'cram-md5', or null.

  Example usage:

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  $app['swiftmailer.options'] = array(
      'host' => 'host',
      'port' => '25',
      'username' => 'username',
      'password' => 'password',
      'encryption' => null,
      'auth_mode' => null
  );

• swiftmailer.sender_address: If set, all messages will be delivered with this address as the "return path" address.
• swiftmailer.delivery_addresses: If not empty, all email messages will be sent to those addresses instead of being sent to their actual recipients. This is often useful when developing.
• swiftmailer.delivery_whitelist: Used in combination with delivery_addresses. If set, emails matching any of these patterns will be delivered like normal, as well as being sent to delivery_addresses.

• swiftmailer.plugins: Array of SwiftMailer plugins.

  Example usage:

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  $app['swiftmailer.plugins'] = function ($app) {
      return array(
          new \Swift_Plugins_PopBeforeSmtpPlugin('pop3.example.com'),
      );
  };

Services

• mailer: The mailer instance.

  Example usage:

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  $message = \Swift_Message::newInstance();
  
  // ...
  
  $app['mailer']->send($message);

• swiftmailer.transport: The transport used for e-mail delivery. Defaults to a Swift_Transport_EsmtpTransport.
• swiftmailer.transport.buffer: StreamBuffer used by the transport.
• swiftmailer.transport.authhandler: Authentication handler used by the transport. Will try the following by default: CRAM-MD5, login, plaintext.
• swiftmailer.transport.eventdispatcher: Internal event dispatcher used by Swiftmailer.

Registering

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$app->register(new Silex\Provider\SwiftmailerServiceProvider());

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composer require swiftmailer/swiftmailer

Usage

The Swiftmailer provider provides a mailer service:

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use Symfony\Component\HttpFoundation\Request;

$app->post('/feedback', function (Request $request) use ($app) {
    $message = \Swift_Message::newInstance()
        ->setSubject('[YourSite] Feedback')
        ->setFrom(array('[email protected]'))
        ->setTo(array('[email protected]'))
        ->setBody($request->get('message'));

    $app['mailer']->send($message);

    return new Response('Thank you for your feedback!', 201);
});

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$app['swiftmailer.use_spool'] = false;

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$app['swiftmailer.spooltransport']
    ->getSpool()
    ->flushQueue($app['swiftmailer.transport'])
;