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.. index::
   single: Emails

How to send an Email

Sending emails is a classic task for any web application and one that has special complications and potential pitfalls. Instead of recreating the wheel, one solution to send emails is to use the SwiftmailerBundle, which leverages the power of the Swiftmailer library.

Note

Don't forget to enable the bundle in your kernel before using it:

public function registerBundles()
{
    $bundles = array(
        ...,
        new Symfony\Bundle\SwiftmailerBundle\SwiftmailerBundle(),
    );

    // ...
}

Configuration

Before using Swiftmailer, be sure to include its configuration. The only mandatory configuration parameter is transport:

.. configuration-block::

    .. code-block:: yaml

        # app/config/config.yml
        swiftmailer:
            transport:  smtp
            encryption: ssl
            auth_mode:  login
            host:       smtp.gmail.com
            username:   your_username
            password:   your_password

    .. code-block:: xml

        <!-- app/config/config.xml -->

        <!--
            xmlns:swiftmailer="http://symfony.com/schema/dic/swiftmailer"
            http://symfony.com/schema/dic/swiftmailer http://symfony.com/schema/dic/swiftmailer/swiftmailer-1.0.xsd
        -->

        <swiftmailer:config
            transport="smtp"
            encryption="ssl"
            auth-mode="login"
            host="smtp.gmail.com"
            username="your_username"
            password="your_password" />

    .. code-block:: php

        // app/config/config.php
        $container->loadFromExtension('swiftmailer', array(
            'transport'  => "smtp",
            'encryption' => "ssl",
            'auth_mode'  => "login",
            'host'       => "smtp.gmail.com",
            'username'   => "your_username",
            'password'   => "your_password",
        ));

The majority of the Swiftmailer configuration deals with how the messages themselves should be delivered.

The following configuration attributes are available:

  • transport (smtp, mail, sendmail, or gmail)
  • username
  • password
  • host
  • port
  • encryption (tls, or ssl)
  • auth_mode (plain, login, or cram-md5)
  • spool
  • delivery_address (an email address where to send ALL emails)
  • disable_delivery (set to true to disable delivery completely)

Sending Emails

The Swiftmailer library works by creating, configuring and then sending Swift_Message objects. The "mailer" is responsible for the actual delivery of the message and is accessible via the mailer service. Overall, sending an email is pretty straightforward:

public function indexAction($name)
{
    $message = \Swift_Message::newInstance()
        ->setSubject('Hello Email')
        ->setFrom('send@example.com')
        ->setTo('recipient@example.com')
        ->setBody(
            $this->renderView(
                'HelloBundle:Hello:email.txt.twig',
                array('name' => $name)
            )
        )
    ;
    $this->get('mailer')->send($message);

    return $this->render(...);
}

To keep things decoupled, the email body has been stored in a template and rendered with the renderView() method.

The $message object supports many more options, such as including attachments, adding HTML content, and much more. Fortunately, Swiftmailer covers the topic of Creating Messages in great detail in its documentation.

Tip

Several other cookbook articles are available related to sending emails in Symfony2: