SwiftmailerBundle Configuration (“swiftmailer”)¶

This reference document is a work in progress. It should be accurate, but all options are not yet fully covered. For a full list of the default configuration options, see Full Default Configuration

The swiftmailer key configures Symfony’s integration with Swift Mailer, which is responsible for creating and delivering email messages.

The following section lists all options that are available to configure a mailer. It is also possible to configure several mailers (see Using Multiple Mailers).

transport¶

type: string default: smtp

The exact transport method to use to deliver emails. Valid values are:

smtp
gmail (see How to Use Gmail to Send Emails)
mail
sendmail
null (same as setting disable_delivery to true)

username¶

type: string

The username when using smtp as the transport.

password¶

type: string

The password when using smtp as the transport.

host¶

type: string default: localhost

The host to connect to when using smtp as the transport.

port¶

type: string default: 25 or 465 (depending on encryption)

The port when using smtp as the transport. This defaults to 465 if encryption is ssl and 25 otherwise.

encryption¶

type: string

The encryption mode to use when using smtp as the transport. Valid values are tls, ssl, or null (indicating no encryption).

auth_mode¶

type: string

The authentication mode to use when using smtp as the transport. Valid values are plain, login, cram-md5, or null.

spool¶

For details on email spooling, see How to Spool Emails.

type¶

type: string default: file

The method used to store spooled messages. Valid values are memory and file. A custom spool should be possible by creating a service called swiftmailer.spool.myspool and setting this value to myspool.

path¶

type: string default: %kernel.cache_dir%/swiftmailer/spool

When using the file spool, this is the path where the spooled messages will be stored.

sender_address¶

type: string

If set, all messages will be delivered with this address as the “return path” address, which is where bounced messages should go. This is handled internally by Swift Mailer’s Swift_Plugins_ImpersonatePlugin class.

antiflood¶

threshold¶

type: integer default: 99

Used with Swift_Plugins_AntiFloodPlugin. This is the number of emails to send before restarting the transport.

sleep¶

type: integer default: 0

Used with Swift_Plugins_AntiFloodPlugin. This is the number of seconds to sleep for during a transport restart.

delivery_address¶

type: string

If set, all email messages will be sent to this address instead of being sent to their actual recipients. This is often useful when developing. For example, by setting this in the config_dev.yml file, you can guarantee that all emails sent during development go to a single account.

This uses Swift_Plugins_RedirectingPlugin. Original recipients are available on the X-Swift-To, X-Swift-Cc and X-Swift-Bcc headers.

disable_delivery¶

type: Boolean default: false

If true, the transport will automatically be set to null, and no emails will actually be delivered.

logging¶

type: Boolean default: %kernel.debug%

If true, Symfony’s data collector will be activated for Swift Mailer and the information will be available in the profiler.

Full default Configuration¶

YAML

swiftmailer:
    transport:            smtp
    username:             ~
    password:             ~
    host:                 localhost
    port:                 false
    encryption:           ~
    auth_mode:            ~
    spool:
        type:                 file
        path:                 "%kernel.cache_dir%/swiftmailer/spool"
    sender_address:       ~
    antiflood:
        threshold:            99
        sleep:                0
    delivery_address:     ~
    disable_delivery:     ~
    logging:              "%kernel.debug%"

XML

<?xml version="1.0" encoding="UTF-8" ?>
<container xmlns="http://symfony.com/schema/dic/services"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:swiftmailer="http://symfony.com/schema/dic/swiftmailer"
    xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd
        http://symfony.com/schema/dic/swiftmailer http://symfony.com/schema/dic/swiftmailer/swiftmailer-1.0.xsd">

    <swiftmailer:config
        transport="smtp"
        username=""
        password=""
        host="localhost"
        port="false"
        encryption=""
        auth_mode=""
        sender_address=""
        delivery_address=""
        disable_delivery=""
        logging="%kernel.debug%"
        >
        <swiftmailer:spool
            path="%kernel.cache_dir%/swiftmailer/spool"
            type="file" />

        <swiftmailer:antiflood
            sleep="0"
            threshold="99" />
    </swiftmailer:config>
</container>

Using multiple Mailers¶

You can configure multiple mailers by grouping them under the mailers key (the default mailer is identified by the default_mailer option):

YAML

swiftmailer:
    default_mailer: second_mailer
    mailers:
        first_mailer:
            # ...
        second_mailer:
            # ...

XML

<?xml version="1.0" encoding="UTF-8" ?>
<container xmlns="http://symfony.com/schema/dic/services"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:swiftmailer="http://symfony.com/schema/dic/swiftmailer"
    xsi:schemaLocation="http://symfony.com/schema/dic/services
        http://symfony.com/schema/dic/services/services-1.0.xsd
        http://symfony.com/schema/dic/swiftmailer
        http://symfony.com/schema/dic/swiftmailer/swiftmailer-1.0.xsd"
>
    <swiftmailer:config default-mailer="second_mailer">
        <swiftmailer:mailer name="first_mailer"/>
        <swiftmailer:mailer name="second_mailer"/>
    </swiftmailer:config>
</container>

PHP

$container->loadFromExtension('swiftmailer', array(
    'default_mailer' => 'second_mailer',
    'mailers' => array(
        'first_mailer' => array(
            // ...
        ),
        'second_mailer' => array(
            // ...
        ),
    ),
));

Each mailer is registered as a service:

// ...

// returns the first mailer
$container->get('swiftmailer.mailer.first_mailer');

// also returns the second mailer since it is the default mailer
$container->get('swiftmailer.mailer');

// returns the second mailer
$container->get('swiftmailer.mailer.second_mailer');